Finding the Fourth Proportional to 121,003.52, 181,557.24 and 42,074.72

Step by Step Solution

1. Step 1: Write the proportion equation
   121,003.52 : 181,557.24 = 42,074.72 : x
2. Step 2: Convert to fraction form
   121,003.52/181,557.24 = 42,074.72/x
3. Step 3: Cross multiply
   121,003.52x = 181,557.24 × 42,074.72
4. Step 4: Simplify right side
   121,003.52x = 7,638,970,036.97
5. Step 5: Solve for x
   x = 7,638,970,036.97/121,003.52
6. Step 6: Final answer
   x = 63,130.15