Finding the Fourth Proportional to 238,098.72, 328,580.25 and 130,678.75

Step by Step Solution

1. Step 1: Write the proportion equation
   238,098.72 : 328,580.25 = 130,678.75 : x
2. Step 2: Convert to fraction form
   238,098.72/328,580.25 = 130,678.75/x
3. Step 3: Cross multiply
   238,098.72x = 328,580.25 × 130,678.75
4. Step 4: Simplify right side
   238,098.72x = 42,938,456,265.37
5. Step 5: Solve for x
   x = 42,938,456,265.37/238,098.72
6. Step 6: Final answer
   x = 180,338.88