Finding the Fourth Proportional to 121,442.28, 182,189.34 and 42,561.32

Step by Step Solution

1. Step 1: Write the proportion equation
   121,442.28 : 182,189.34 = 42,561.32 : x
2. Step 2: Convert to fraction form
   121,442.28/182,189.34 = 42,561.32/x
3. Step 3: Cross multiply
   121,442.28x = 182,189.34 × 42,561.32
4. Step 4: Simplify right side
   121,442.28x = 7,754,218,800.33
5. Step 5: Solve for x
   x = 7,754,218,800.33/121,442.28
6. Step 6: Final answer
   x = 63,851.06