Finding the Fourth Proportional to 42,078.78, 58,066.98 and 23,215.88

Step by Step Solution

1. Step 1: Write the proportion equation
   42,078.78 : 58,066.98 = 23,215.88 : x
2. Step 2: Convert to fraction form
   42,078.78/58,066.98 = 23,215.88/x
3. Step 3: Cross multiply
   42,078.78x = 58,066.98 × 23,215.88
4. Step 4: Simplify right side
   42,078.78x = 1,348,076,039.64
5. Step 5: Solve for x
   x = 1,348,076,039.64/42,078.78
6. Step 6: Final answer
   x = 32,036.96