Finding the Fourth Proportional to 42,040.66, 58,016.10 and 23,178.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,040.66 : 58,016.10 = 23,178.10 : x
2. Step 2: Convert to fraction form
   42,040.66/58,016.10 = 23,178.10/x
3. Step 3: Cross multiply
   42,040.66x = 58,016.10 × 23,178.10
4. Step 4: Simplify right side
   42,040.66x = 1,344,702,967.41
5. Step 5: Solve for x
   x = 1,344,702,967.41/42,040.66
6. Step 6: Final answer
   x = 31,985.77