Finding the Fourth Proportional to 101,274.28, 139,700.10 and 60,960.04

Step by Step Solution

1. Step 1: Write the proportion equation
   101,274.28 : 139,700.10 = 60,960.04 : x
2. Step 2: Convert to fraction form
   101,274.28/139,700.10 = 60,960.04/x
3. Step 3: Cross multiply
   101,274.28x = 139,700.10 × 60,960.04
4. Step 4: Simplify right side
   101,274.28x = 8,516,123,684.00
5. Step 5: Solve for x
   x = 8,516,123,684.00/101,274.28
6. Step 6: Final answer
   x = 84,089.70