Finding the Fourth Proportional to 42,642.66, 58,866.06 and 31,292.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,642.66 : 58,866.06 = 31,292.10 : x
2. Step 2: Convert to fraction form
   42,642.66/58,866.06 = 31,292.10/x
3. Step 3: Cross multiply
   42,642.66x = 58,866.06 × 31,292.10
4. Step 4: Simplify right side
   42,642.66x = 1,842,042,636.13
5. Step 5: Solve for x
   x = 1,842,042,636.13/42,642.66
6. Step 6: Final answer
   x = 43,197.18