Finding the Fourth Proportional to 111,491, 153,857.82 and 61,189.88

Step by Step Solution

1. Step 1: Write the proportion equation
   111,491 : 153,857.82 = 61,189.88 : x
2. Step 2: Convert to fraction form
   111,491/153,857.82 = 61,189.88/x
3. Step 3: Cross multiply
   111,491x = 153,857.82 × 61,189.88
4. Step 4: Simplify right side
   111,491x = 9,414,541,542.86
5. Step 5: Solve for x
   x = 9,414,541,542.86/111,491
6. Step 6: Final answer
   x = 84,442.17