Finding the Fourth Proportional to 111,564.64, 153,978.98 and 63,169.37

Step by Step Solution

1. Step 1: Write the proportion equation
   111,564.64 : 153,978.98 = 63,169.37 : x
2. Step 2: Convert to fraction form
   111,564.64/153,978.98 = 63,169.37/x
3. Step 3: Cross multiply
   111,564.64x = 153,978.98 × 63,169.37
4. Step 4: Simplify right side
   111,564.64x = 9,726,754,651.52
5. Step 5: Solve for x
   x = 9,726,754,651.52/111,564.64
6. Step 6: Final answer
   x = 87,184.92