Finding the Fourth Proportional to 172,034.89, 257,986.52 and 56,602.50

Step by Step Solution

1. Step 1: Write the proportion equation
   172,034.89 : 257,986.52 = 56,602.50 : x
2. Step 2: Convert to fraction form
   172,034.89/257,986.52 = 56,602.50/x
3. Step 3: Cross multiply
   172,034.89x = 257,986.52 × 56,602.50
4. Step 4: Simplify right side
   172,034.89x = 14,602,680,960.10
5. Step 5: Solve for x
   x = 14,602,680,960.10/172,034.89
6. Step 6: Final answer
   x = 84,882.09