Finding the Fourth Proportional to 609,013.72, 913,498.71 and 159,731.02

Step by Step Solution

1. Step 1: Write the proportion equation
   609,013.72 : 913,498.71 = 159,731.02 : x
2. Step 2: Convert to fraction form
   609,013.72/913,498.71 = 159,731.02/x
3. Step 3: Cross multiply
   609,013.72x = 913,498.71 × 159,731.02
4. Step 4: Simplify right side
   609,013.72x = 145,914,077,834.25
5. Step 5: Solve for x
   x = 145,914,077,834.25/609,013.72
6. Step 6: Final answer
   x = 239,590.79