Finding the Fourth Proportional to 172,939, 238,655.82 and 93,451

Step by Step Solution

1. Step 1: Write the proportion equation
   172,939 : 238,655.82 = 93,451 : x
2. Step 2: Convert to fraction form
   172,939/238,655.82 = 93,451/x
3. Step 3: Cross multiply
   172,939x = 238,655.82 × 93,451
4. Step 4: Simplify right side
   172,939x = 22,302,625,034.82
5. Step 5: Solve for x
   x = 22,302,625,034.82/172,939
6. Step 6: Final answer
   x = 128,962.38