Finding the Fourth Proportional to 111,126.63, 153,355.24 and 60,139.37

Step by Step Solution

1. Step 1: Write the proportion equation
   111,126.63 : 153,355.24 = 60,139.37 : x
2. Step 2: Convert to fraction form
   111,126.63/153,355.24 = 60,139.37/x
3. Step 3: Cross multiply
   111,126.63x = 153,355.24 × 60,139.37
4. Step 4: Simplify right side
   111,126.63x = 9,222,687,818.40
5. Step 5: Solve for x
   x = 9,222,687,818.40/111,126.63
6. Step 6: Final answer
   x = 82,992.60