Finding the Fourth Proportional to 238,003.30, 328,442.62 and 129,107.33

Step by Step Solution

1. Step 1: Write the proportion equation
   238,003.30 : 328,442.62 = 129,107.33 : x
2. Step 2: Convert to fraction form
   238,003.30/328,442.62 = 129,107.33/x
3. Step 3: Cross multiply
   238,003.30x = 328,442.62 × 129,107.33
4. Step 4: Simplify right side
   238,003.30x = 42,404,347,761.42
5. Step 5: Solve for x
   x = 42,404,347,761.42/238,003.30
6. Step 6: Final answer
   x = 178,167.06