Finding the Fourth Proportional to 105,329.78, 145,356.82 and 62,892.02

Step by Step Solution

1. Step 1: Write the proportion equation
   105,329.78 : 145,356.82 = 62,892.02 : x
2. Step 2: Convert to fraction form
   105,329.78/145,356.82 = 62,892.02/x
3. Step 3: Cross multiply
   105,329.78x = 145,356.82 × 62,892.02
4. Step 4: Simplify right side
   105,329.78x = 9,141,784,030.58
5. Step 5: Solve for x
   x = 9,141,784,030.58/105,329.78
6. Step 6: Final answer
   x = 86,792.02