Finding the Fourth Proportional to 111,510.64, 153,887.70 and 63,109

Step by Step Solution

1. Step 1: Write the proportion equation
   111,510.64 : 153,887.70 = 63,109 : x
2. Step 2: Convert to fraction form
   111,510.64/153,887.70 = 63,109/x
3. Step 3: Cross multiply
   111,510.64x = 153,887.70 × 63,109
4. Step 4: Simplify right side
   111,510.64x = 9,711,698,859.30
5. Step 5: Solve for x
   x = 9,711,698,859.30/111,510.64
6. Step 6: Final answer
   x = 87,092.13