Finding the Fourth Proportional to 121,150.12, 181,755.42 and 42,265

Step by Step Solution

1. Step 1: Write the proportion equation
   121,150.12 : 181,755.42 = 42,265 : x
2. Step 2: Convert to fraction form
   121,150.12/181,755.42 = 42,265/x
3. Step 3: Cross multiply
   121,150.12x = 181,755.42 × 42,265
4. Step 4: Simplify right side
   121,150.12x = 7,681,892,826.30
5. Step 5: Solve for x
   x = 7,681,892,826.30/121,150.12
6. Step 6: Final answer
   x = 63,408.05