Finding the Fourth Proportional to 121,053.94, 181,581.78 and 42,167.90

Step by Step Solution

1. Step 1: Write the proportion equation
   121,053.94 : 181,581.78 = 42,167.90 : x
2. Step 2: Convert to fraction form
   121,053.94/181,581.78 = 42,167.90/x
3. Step 3: Cross multiply
   121,053.94x = 181,581.78 × 42,167.90
4. Step 4: Simplify right side
   121,053.94x = 7,656,922,340.86
5. Step 5: Solve for x
   x = 7,656,922,340.86/121,053.94
6. Step 6: Final answer
   x = 63,252.15