Finding the Fourth Proportional to 171,591.10, 257,411.55 and 53,272.06

Step by Step Solution

1. Step 1: Write the proportion equation
   171,591.10 : 257,411.55 = 53,272.06 : x
2. Step 2: Convert to fraction form
   171,591.10/257,411.55 = 53,272.06/x
3. Step 3: Cross multiply
   171,591.10x = 257,411.55 × 53,272.06
4. Step 4: Simplify right side
   171,591.10x = 13,712,843,536.29
5. Step 5: Solve for x
   x = 13,712,843,536.29/171,591.10
6. Step 6: Final answer
   x = 79,915.82