Finding the Fourth Proportional to 42,375.78, 58,478.61 and 23,512.89

Step by Step Solution

1. Step 1: Write the proportion equation
   42,375.78 : 58,478.61 = 23,512.89 : x
2. Step 2: Convert to fraction form
   42,375.78/58,478.61 = 23,512.89/x
3. Step 3: Cross multiply
   42,375.78x = 58,478.61 × 23,512.89
4. Step 4: Simplify right side
   42,375.78x = 1,375,001,124.28
5. Step 5: Solve for x
   x = 1,375,001,124.28/42,375.78
6. Step 6: Final answer
   x = 32,447.81