Finding the Fourth Proportional to 111,416.52, 153,739.98 and 63,025.05

Step by Step Solution

1. Step 1: Write the proportion equation
   111,416.52 : 153,739.98 = 63,025.05 : x
2. Step 2: Convert to fraction form
   111,416.52/153,739.98 = 63,025.05/x
3. Step 3: Cross multiply
   111,416.52x = 153,739.98 × 63,025.05
4. Step 4: Simplify right side
   111,416.52x = 9,689,469,926.50
5. Step 5: Solve for x
   x = 9,689,469,926.50/111,416.52
6. Step 6: Final answer
   x = 86,966.19