Finding the Fourth Proportional to 101,179.76, 139,600.92 and 65,356.72

Step by Step Solution

1. Step 1: Write the proportion equation
   101,179.76 : 139,600.92 = 65,356.72 : x
2. Step 2: Convert to fraction form
   101,179.76/139,600.92 = 65,356.72/x
3. Step 3: Cross multiply
   101,179.76x = 139,600.92 × 65,356.72
4. Step 4: Simplify right side
   101,179.76x = 9,123,858,240.18
5. Step 5: Solve for x
   x = 9,123,858,240.18/101,179.76
6. Step 6: Final answer
   x = 90,174.74