Finding the Fourth Proportional to 58,470.58, 80,690 and 31,613.61

Step by Step Solution

1. Step 1: Write the proportion equation
   58,470.58 : 80,690 = 31,613.61 : x
2. Step 2: Convert to fraction form
   58,470.58/80,690 = 31,613.61/x
3. Step 3: Cross multiply
   58,470.58x = 80,690 × 31,613.61
4. Step 4: Simplify right side
   58,470.58x = 2,550,902,190.90
5. Step 5: Solve for x
   x = 2,550,902,190.90/58,470.58
6. Step 6: Final answer
   x = 43,627.11