Finding the Fourth Proportional to 138,527,039.72, 207,376,297.82 and 83,773,920.04

Step by Step Solution

1. Step 1: Write the proportion equation
   138,527,039.72 : 207,376,297.82 = 83,773,920.04 : x
2. Step 2: Convert to fraction form
   138,527,039.72/207,376,297.82 = 83,773,920.04/x
3. Step 3: Cross multiply
   138,527,039.72x = 207,376,297.82 × 83,773,920.04
4. Step 4: Simplify right side
   138,527,039.72x = 17,372,725,391,763,908
5. Step 5: Solve for x
   x = 17,372,725,391,763,908/138,527,039.72
6. Step 6: Final answer
   x = 125,410,356.18