Finding the Fourth Proportional to 259,451.52, 389,013.12 and 109,614.72

Step by Step Solution

1. Step 1: Write the proportion equation
   259,451.52 : 389,013.12 = 109,614.72 : x
2. Step 2: Convert to fraction form
   259,451.52/389,013.12 = 109,614.72/x
3. Step 3: Cross multiply
   259,451.52x = 389,013.12 × 109,614.72
4. Step 4: Simplify right side
   259,451.52x = 42,641,564,225.13
5. Step 5: Solve for x
   x = 42,641,564,225.13/259,451.52
6. Step 6: Final answer
   x = 164,352.72