Finding the Fourth Proportional to 171,802.71, 257,640.89 and 59,454.09

Step by Step Solution

1. Step 1: Write the proportion equation
   171,802.71 : 257,640.89 = 59,454.09 : x
2. Step 2: Convert to fraction form
   171,802.71/257,640.89 = 59,454.09/x
3. Step 3: Cross multiply
   171,802.71x = 257,640.89 × 59,454.09
4. Step 4: Simplify right side
   171,802.71x = 15,317,804,364.47
5. Step 5: Solve for x
   x = 15,317,804,364.47/171,802.71
6. Step 6: Final answer
   x = 89,159.27