Finding the Fourth Proportional to 99,654.58, 137,488.82 and 63,864.32

Step by Step Solution

1. Step 1: Write the proportion equation
   99,654.58 : 137,488.82 = 63,864.32 : x
2. Step 2: Convert to fraction form
   99,654.58/137,488.82 = 63,864.32/x
3. Step 3: Cross multiply
   99,654.58x = 137,488.82 × 63,864.32
4. Step 4: Simplify right side
   99,654.58x = 8,780,629,996.90
5. Step 5: Solve for x
   x = 8,780,629,996.90/99,654.58
6. Step 6: Final answer
   x = 88,110.65