Finding the Fourth Proportional to 120,980.48, 181,490.12 and 42,117.24

Step by Step Solution

1. Step 1: Write the proportion equation
   120,980.48 : 181,490.12 = 42,117.24 : x
2. Step 2: Convert to fraction form
   120,980.48/181,490.12 = 42,117.24/x
3. Step 3: Cross multiply
   120,980.48x = 181,490.12 × 42,117.24
4. Step 4: Simplify right side
   120,980.48x = 7,643,862,941.67
5. Step 5: Solve for x
   x = 7,643,862,941.67/120,980.48
6. Step 6: Final answer
   x = 63,182.61