Finding the Fourth Proportional to 238,147.89, 328,641.29 and 129,252.41

Step by Step Solution

1. Step 1: Write the proportion equation
   238,147.89 : 328,641.29 = 129,252.41 : x
2. Step 2: Convert to fraction form
   238,147.89/328,641.29 = 129,252.41/x
3. Step 3: Cross multiply
   238,147.89x = 328,641.29 × 129,252.41
4. Step 4: Simplify right side
   238,147.89x = 42,477,680,034.25
5. Step 5: Solve for x
   x = 42,477,680,034.25/238,147.89
6. Step 6: Final answer
   x = 178,366.82