Finding the Fourth Proportional to 93,158.73, 139,563.14 and 72,280.17

Step by Step Solution

1. Step 1: Write the proportion equation
   93,158.73 : 139,563.14 = 72,280.17 : x
2. Step 2: Convert to fraction form
   93,158.73/139,563.14 = 72,280.17/x
3. Step 3: Cross multiply
   93,158.73x = 139,563.14 × 72,280.17
4. Step 4: Simplify right side
   93,158.73x = 10,087,647,123.53
5. Step 5: Solve for x
   x = 10,087,647,123.53/93,158.73
6. Step 6: Final answer
   x = 108,284.51