Finding the Fourth Proportional to 111,492.78, 153,860.12 and 60,505.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,492.78 : 153,860.12 = 60,505.50 : x
2. Step 2: Convert to fraction form
   111,492.78/153,860.12 = 60,505.50/x
3. Step 3: Cross multiply
   111,492.78x = 153,860.12 × 60,505.50
4. Step 4: Simplify right side
   111,492.78x = 9,309,383,490.66
5. Step 5: Solve for x
   x = 9,309,383,490.66/111,492.78
6. Step 6: Final answer
   x = 83,497.64