Finding the Fourth Proportional to 93,158.98, 139,563.51 and 72,280.42

Step by Step Solution

1. Step 1: Write the proportion equation
   93,158.98 : 139,563.51 = 72,280.42 : x
2. Step 2: Convert to fraction form
   93,158.98/139,563.51 = 72,280.42/x
3. Step 3: Cross multiply
   93,158.98x = 139,563.51 × 72,280.42
4. Step 4: Simplify right side
   93,158.98x = 10,087,709,119.47
5. Step 5: Solve for x
   x = 10,087,709,119.47/93,158.98
6. Step 6: Final answer
   x = 108,284.88