Finding the Fourth Proportional to 42,025.79, 63,038.88 and 12,444.18

Step by Step Solution

1. Step 1: Write the proportion equation
   42,025.79 : 63,038.88 = 12,444.18 : x
2. Step 2: Convert to fraction form
   42,025.79/63,038.88 = 12,444.18/x
3. Step 3: Cross multiply
   42,025.79x = 63,038.88 × 12,444.18
4. Step 4: Simplify right side
   42,025.79x = 784,467,169.72
5. Step 5: Solve for x
   x = 784,467,169.72/42,025.79
6. Step 6: Final answer
   x = 18,666.33