Finding the Fourth Proportional to 172,158.57, 258,252.72 and 47,499.57

Step by Step Solution

1. Step 1: Write the proportion equation
   172,158.57 : 258,252.72 = 47,499.57 : x
2. Step 2: Convert to fraction form
   172,158.57/258,252.72 = 47,499.57/x
3. Step 3: Cross multiply
   172,158.57x = 258,252.72 × 47,499.57
4. Step 4: Simplify right side
   172,158.57x = 12,266,893,151.33
5. Step 5: Solve for x
   x = 12,266,893,151.33/172,158.57
6. Step 6: Final answer
   x = 71,253.46