Finding the Fourth Proportional to 111,519.41, 153,892.64 and 60,531.05

Step by Step Solution

1. Step 1: Write the proportion equation
   111,519.41 : 153,892.64 = 60,531.05 : x
2. Step 2: Convert to fraction form
   111,519.41/153,892.64 = 60,531.05/x
3. Step 3: Cross multiply
   111,519.41x = 153,892.64 × 60,531.05
4. Step 4: Simplify right side
   111,519.41x = 9,315,283,086.47
5. Step 5: Solve for x
   x = 9,315,283,086.47/111,519.41
6. Step 6: Final answer
   x = 83,530.60