Finding the Fourth Proportional to 42,069.92, 63,111.15 and 12,484.26

Step by Step Solution

1. Step 1: Write the proportion equation
   42,069.92 : 63,111.15 = 12,484.26 : x
2. Step 2: Convert to fraction form
   42,069.92/63,111.15 = 12,484.26/x
3. Step 3: Cross multiply
   42,069.92x = 63,111.15 × 12,484.26
4. Step 4: Simplify right side
   42,069.92x = 787,896,005.50
5. Step 5: Solve for x
   x = 787,896,005.50/42,069.92
6. Step 6: Final answer
   x = 18,728.25