Finding the Fourth Proportional to 42,148.33, 63,230.69 and 12,565.51

Step by Step Solution

1. Step 1: Write the proportion equation
   42,148.33 : 63,230.69 = 12,565.51 : x
2. Step 2: Convert to fraction form
   42,148.33/63,230.69 = 12,565.51/x
3. Step 3: Cross multiply
   42,148.33x = 63,230.69 × 12,565.51
4. Step 4: Simplify right side
   42,148.33x = 794,525,867.50
5. Step 5: Solve for x
   x = 794,525,867.50/42,148.33
6. Step 6: Final answer
   x = 18,850.71