Finding the Fourth Proportional to 42,019.66, 63,010.05 and 15,723.82

Step by Step Solution

1. Step 1: Write the proportion equation
   42,019.66 : 63,010.05 = 15,723.82 : x
2. Step 2: Convert to fraction form
   42,019.66/63,010.05 = 15,723.82/x
3. Step 3: Cross multiply
   42,019.66x = 63,010.05 × 15,723.82
4. Step 4: Simplify right side
   42,019.66x = 990,758,684.39
5. Step 5: Solve for x
   x = 990,758,684.39/42,019.66
6. Step 6: Final answer
   x = 23,578.46