Finding the Fourth Proportional to 103,254.50, 142,541.27 and 69,250.55

Step by Step Solution

1. Step 1: Write the proportion equation
   103,254.50 : 142,541.27 = 69,250.55 : x
2. Step 2: Convert to fraction form
   103,254.50/142,541.27 = 69,250.55/x
3. Step 3: Cross multiply
   103,254.50x = 142,541.27 × 69,250.55
4. Step 4: Simplify right side
   103,254.50x = 9,871,061,345.20
5. Step 5: Solve for x
   x = 9,871,061,345.20/103,254.50
6. Step 6: Final answer
   x = 95,599.33