Finding the Fourth Proportional to 42,156.24, 63,233.64 and 12,574.16

Step by Step Solution

1. Step 1: Write the proportion equation
   42,156.24 : 63,233.64 = 12,574.16 : x
2. Step 2: Convert to fraction form
   42,156.24/63,233.64 = 12,574.16/x
3. Step 3: Cross multiply
   42,156.24x = 63,233.64 × 12,574.16
4. Step 4: Simplify right side
   42,156.24x = 795,109,906.74
5. Step 5: Solve for x
   x = 795,109,906.74/42,156.24
6. Step 6: Final answer
   x = 18,861.03