Finding the Fourth Proportional to 111,095.64, 153,152.50 and 79,209.18

Step by Step Solution

1. Step 1: Write the proportion equation
   111,095.64 : 153,152.50 = 79,209.18 : x
2. Step 2: Convert to fraction form
   111,095.64/153,152.50 = 79,209.18/x
3. Step 3: Cross multiply
   111,095.64x = 153,152.50 × 79,209.18
4. Step 4: Simplify right side
   111,095.64x = 12,131,083,939.95
5. Step 5: Solve for x
   x = 12,131,083,939.95/111,095.64
6. Step 6: Final answer
   x = 109,194.96