Finding the Fourth Proportional to 42,029.02, 63,044.16 and 12,449.86

Step by Step Solution

1. Step 1: Write the proportion equation
   42,029.02 : 63,044.16 = 12,449.86 : x
2. Step 2: Convert to fraction form
   42,029.02/63,044.16 = 12,449.86/x
3. Step 3: Cross multiply
   42,029.02x = 63,044.16 × 12,449.86
4. Step 4: Simplify right side
   42,029.02x = 784,890,965.82
5. Step 5: Solve for x
   x = 784,890,965.82/42,029.02
6. Step 6: Final answer
   x = 18,674.98