Finding the Fourth Proportional to 99,825.14, 137,820.86 and 63,547.05

Step by Step Solution

1. Step 1: Write the proportion equation
   99,825.14 : 137,820.86 = 63,547.05 : x
2. Step 2: Convert to fraction form
   99,825.14/137,820.86 = 63,547.05/x
3. Step 3: Cross multiply
   99,825.14x = 137,820.86 × 63,547.05
4. Step 4: Simplify right side
   99,825.14x = 8,758,108,763.73
5. Step 5: Solve for x
   x = 8,758,108,763.73/99,825.14
6. Step 6: Final answer
   x = 87,734.50