Finding the Fourth Proportional to 103,507.29, 142,650.59 and 75,163.77

Step by Step Solution

1. Step 1: Write the proportion equation
   103,507.29 : 142,650.59 = 75,163.77 : x
2. Step 2: Convert to fraction form
   103,507.29/142,650.59 = 75,163.77/x
3. Step 3: Cross multiply
   103,507.29x = 142,650.59 × 75,163.77
4. Step 4: Simplify right side
   103,507.29x = 10,722,155,761.31
5. Step 5: Solve for x
   x = 10,722,155,761.31/103,507.29
6. Step 6: Final answer
   x = 103,588.41