Finding the Fourth Proportional to 121,426.98, 182,030.21 and 42,498.15

Step by Step Solution

1. Step 1: Write the proportion equation
   121,426.98 : 182,030.21 = 42,498.15 : x
2. Step 2: Convert to fraction form
   121,426.98/182,030.21 = 42,498.15/x
3. Step 3: Cross multiply
   121,426.98x = 182,030.21 × 42,498.15
4. Step 4: Simplify right side
   121,426.98x = 7,735,946,956.62
5. Step 5: Solve for x
   x = 7,735,946,956.62/121,426.98
6. Step 6: Final answer
   x = 63,708.63