Finding the Fourth Proportional to 69,025.64, 103,353.94 and 39,402.72

Step by Step Solution

1. Step 1: Write the proportion equation
   69,025.64 : 103,353.94 = 39,402.72 : x
2. Step 2: Convert to fraction form
   69,025.64/103,353.94 = 39,402.72/x
3. Step 3: Cross multiply
   69,025.64x = 103,353.94 × 39,402.72
4. Step 4: Simplify right side
   69,025.64x = 4,072,426,358.72
5. Step 5: Solve for x
   x = 4,072,426,358.72/69,025.64
6. Step 6: Final answer
   x = 58,998.75