Finding the Fourth Proportional to 424,613,722,476.72, 636,922,964,768.05 and 141,631,788,948.50

Step by Step Solution

1. Step 1: Write the proportion equation
   424,613,722,476.72 : 636,922,964,768.05 = 141,631,788,948.50 : x
2. Step 2: Convert to fraction form
   424,613,722,476.72/636,922,964,768.05 = 141,631,788,948.50/x
3. Step 3: Cross multiply
   424,613,722,476.72x = 636,922,964,768.05 × 141,631,788,948.50
4. Step 4: Simplify right side
   424,613,722,476.72x = 90,208,538,922,481,369,481,216
5. Step 5: Solve for x
   x = 90,208,538,922,481,369,481,216/424,613,722,476.72
6. Step 6: Final answer
   x = 212,448,477,633.52