Finding the Fourth Proportional to 93,111.38, 139,614.37 and 85,176.62

Step by Step Solution

1. Step 1: Write the proportion equation
   93,111.38 : 139,614.37 = 85,176.62 : x
2. Step 2: Convert to fraction form
   93,111.38/139,614.37 = 85,176.62/x
3. Step 3: Cross multiply
   93,111.38x = 139,614.37 × 85,176.62
4. Step 4: Simplify right side
   93,111.38x = 11,891,880,140.03
5. Step 5: Solve for x
   x = 11,891,880,140.03/93,111.38
6. Step 6: Final answer
   x = 127,716.72