Finding the Fourth Proportional to 121,053.87, 181,581.71 and 42,167.97

Step by Step Solution

1. Step 1: Write the proportion equation
   121,053.87 : 181,581.71 = 42,167.97 : x
2. Step 2: Convert to fraction form
   121,053.87/181,581.71 = 42,167.97/x
3. Step 3: Cross multiply
   121,053.87x = 181,581.71 × 42,167.97
4. Step 4: Simplify right side
   121,053.87x = 7,656,932,099.83
5. Step 5: Solve for x
   x = 7,656,932,099.83/121,053.87
6. Step 6: Final answer
   x = 63,252.27