Finding the Fourth Proportional to 42,152.56, 63,231.57 and 12,573.38

Step by Step Solution

1. Step 1: Write the proportion equation
   42,152.56 : 63,231.57 = 12,573.38 : x
2. Step 2: Convert to fraction form
   42,152.56/63,231.57 = 12,573.38/x
3. Step 3: Cross multiply
   42,152.56x = 63,231.57 × 12,573.38
4. Step 4: Simplify right side
   42,152.56x = 795,034,715.69
5. Step 5: Solve for x
   x = 795,034,715.69/42,152.56
6. Step 6: Final answer
   x = 18,860.89