Finding the Fourth Proportional to 63,830.40, 88,062.15 and 63,731.98

Step by Step Solution

1. Step 1: Write the proportion equation
   63,830.40 : 88,062.15 = 63,731.98 : x
2. Step 2: Convert to fraction form
   63,830.40/88,062.15 = 63,731.98/x
3. Step 3: Cross multiply
   63,830.40x = 88,062.15 × 63,731.98
4. Step 4: Simplify right side
   63,830.40x = 5,612,375,182.56
5. Step 5: Solve for x
   x = 5,612,375,182.56/63,830.40
6. Step 6: Final answer
   x = 87,926.37