Finding the Fourth Proportional to 88,398, 132,419.61 and 43,890.12

Step by Step Solution

1. Step 1: Write the proportion equation
   88,398 : 132,419.61 = 43,890.12 : x
2. Step 2: Convert to fraction form
   88,398/132,419.61 = 43,890.12/x
3. Step 3: Cross multiply
   88,398x = 132,419.61 × 43,890.12
4. Step 4: Simplify right side
   88,398x = 5,811,912,573.25
5. Step 5: Solve for x
   x = 5,811,912,573.25/88,398
6. Step 6: Final answer
   x = 65,747.10