Finding the Fourth Proportional to 42,194,644.52, 63,301,511.82 and 13,442,417.96

Step by Step Solution

1. Step 1: Write the proportion equation
   42,194,644.52 : 63,301,511.82 = 13,442,417.96 : x
2. Step 2: Convert to fraction form
   42,194,644.52/63,301,511.82 = 13,442,417.96/x
3. Step 3: Cross multiply
   42,194,644.52x = 63,301,511.82 × 13,442,417.96
4. Step 4: Simplify right side
   42,194,644.52x = 850,925,379,067,812.75
5. Step 5: Solve for x
   x = 850,925,379,067,812.75/42,194,644.52
6. Step 6: Final answer
   x = 20,166,667.80