Finding the Fourth Proportional to 93,745.38, 129,429 and 83,656.48

Step by Step Solution

1. Step 1: Write the proportion equation
   93,745.38 : 129,429 = 83,656.48 : x
2. Step 2: Convert to fraction form
   93,745.38/129,429 = 83,656.48/x
3. Step 3: Cross multiply
   93,745.38x = 129,429 × 83,656.48
4. Step 4: Simplify right side
   93,745.38x = 10,827,574,549.92
5. Step 5: Solve for x
   x = 10,827,574,549.92/93,745.38
6. Step 6: Final answer
   x = 115,499.82