Finding the Fourth Proportional to 121,425.55, 182,028.05 and 42,496.72

Step by Step Solution

1. Step 1: Write the proportion equation
   121,425.55 : 182,028.05 = 42,496.72 : x
2. Step 2: Convert to fraction form
   121,425.55/182,028.05 = 42,496.72/x
3. Step 3: Cross multiply
   121,425.55x = 182,028.05 × 42,496.72
4. Step 4: Simplify right side
   121,425.55x = 7,735,594,803.85
5. Step 5: Solve for x
   x = 7,735,594,803.85/121,425.55
6. Step 6: Final answer
   x = 63,706.48