Finding the Fourth Proportional to 42,064.72, 63,096.76 and 12,482.64

Step by Step Solution

1. Step 1: Write the proportion equation
   42,064.72 : 63,096.76 = 12,482.64 : x
2. Step 2: Convert to fraction form
   42,064.72/63,096.76 = 12,482.64/x
3. Step 3: Cross multiply
   42,064.72x = 63,096.76 × 12,482.64
4. Step 4: Simplify right side
   42,064.72x = 787,614,140.25
5. Step 5: Solve for x
   x = 787,614,140.25/42,064.72
6. Step 6: Final answer
   x = 18,723.87