Finding the Fourth Proportional to 111,178, 153,306.42 and 89,645.14

Step by Step Solution

1. Step 1: Write the proportion equation
   111,178 : 153,306.42 = 89,645.14 : x
2. Step 2: Convert to fraction form
   111,178/153,306.42 = 89,645.14/x
3. Step 3: Cross multiply
   111,178x = 153,306.42 × 89,645.14
4. Step 4: Simplify right side
   111,178x = 13,743,175,483.80
5. Step 5: Solve for x
   x = 13,743,175,483.80/111,178
6. Step 6: Final answer
   x = 123,614.16