Finding the Fourth Proportional to 42,609.43, 58,907.30 and 31,980.61

Step by Step Solution

1. Step 1: Write the proportion equation
   42,609.43 : 58,907.30 = 31,980.61 : x
2. Step 2: Convert to fraction form
   42,609.43/58,907.30 = 31,980.61/x
3. Step 3: Cross multiply
   42,609.43x = 58,907.30 × 31,980.61
4. Step 4: Simplify right side
   42,609.43x = 1,883,891,387.45
5. Step 5: Solve for x
   x = 1,883,891,387.45/42,609.43
6. Step 6: Final answer
   x = 44,213.02