Finding the Fourth Proportional to 102,105.57, 140,885 and 59,655.90

Step by Step Solution

1. Step 1: Write the proportion equation
   102,105.57 : 140,885 = 59,655.90 : x
2. Step 2: Convert to fraction form
   102,105.57/140,885 = 59,655.90/x
3. Step 3: Cross multiply
   102,105.57x = 140,885 × 59,655.90
4. Step 4: Simplify right side
   102,105.57x = 8,404,621,471.50
5. Step 5: Solve for x
   x = 8,404,621,471.50/102,105.57
6. Step 6: Final answer
   x = 82,313.06