Finding the Fourth Proportional to 121,055.88, 181,584.72 and 42,169.98

Step by Step Solution

1. Step 1: Write the proportion equation
   121,055.88 : 181,584.72 = 42,169.98 : x
2. Step 2: Convert to fraction form
   121,055.88/181,584.72 = 42,169.98/x
3. Step 3: Cross multiply
   121,055.88x = 181,584.72 × 42,169.98
4. Step 4: Simplify right side
   121,055.88x = 7,657,424,010.71
5. Step 5: Solve for x
   x = 7,657,424,010.71/121,055.88
6. Step 6: Final answer
   x = 63,255.28