Finding the Fourth Proportional to 42,187.78, 58,220.31 and 23,326.12

Step by Step Solution

1. Step 1: Write the proportion equation
   42,187.78 : 58,220.31 = 23,326.12 : x
2. Step 2: Convert to fraction form
   42,187.78/58,220.31 = 23,326.12/x
3. Step 3: Cross multiply
   42,187.78x = 58,220.31 × 23,326.12
4. Step 4: Simplify right side
   42,187.78x = 1,358,053,937.50
5. Step 5: Solve for x
   x = 1,358,053,937.50/42,187.78
6. Step 6: Final answer
   x = 32,190.69