Finding the Fourth Proportional to 521,538,933,667.48, 782,307,424,049.52 and 163,418,323,049.08

Step by Step Solution

1. Step 1: Write the proportion equation
   521,538,933,667.48 : 782,307,424,049.52 = 163,418,323,049.08 : x
2. Step 2: Convert to fraction form
   521,538,933,667.48/782,307,424,049.52 = 163,418,323,049.08/x
3. Step 3: Cross multiply
   521,538,933,667.48x = 782,307,424,049.52 × 163,418,323,049.08
4. Step 4: Simplify right side
   521,538,933,667.48x = 127,843,367,347,018,069,442,560
5. Step 5: Solve for x
   x = 127,843,367,347,018,069,442,560/521,538,933,667.48
6. Step 6: Final answer
   x = 245,127,178,613.53