Finding the Fourth Proportional to 111,350.16, 153,457.10 and 79,086.18

Step by Step Solution

1. Step 1: Write the proportion equation
   111,350.16 : 153,457.10 = 79,086.18 : x
2. Step 2: Convert to fraction form
   111,350.16/153,457.10 = 79,086.18/x
3. Step 3: Cross multiply
   111,350.16x = 153,457.10 × 79,086.18
4. Step 4: Simplify right side
   111,350.16x = 12,136,335,832.88
5. Step 5: Solve for x
   x = 12,136,335,832.88/111,350.16
6. Step 6: Final answer
   x = 108,992.53