Finding the Fourth Proportional to 129,101.77, 193,293.50 and 65,785.38

Step by Step Solution

1. Step 1: Write the proportion equation
   129,101.77 : 193,293.50 = 65,785.38 : x
2. Step 2: Convert to fraction form
   129,101.77/193,293.50 = 65,785.38/x
3. Step 3: Cross multiply
   129,101.77x = 193,293.50 × 65,785.38
4. Step 4: Simplify right side
   129,101.77x = 12,715,886,382.53
5. Step 5: Solve for x
   x = 12,715,886,382.53/129,101.77
6. Step 6: Final answer
   x = 98,495.06