Finding the Fourth Proportional to 58,470.64, 80,689.32 and 31,612.96

Step by Step Solution

1. Step 1: Write the proportion equation
   58,470.64 : 80,689.32 = 31,612.96 : x
2. Step 2: Convert to fraction form
   58,470.64/80,689.32 = 31,612.96/x
3. Step 3: Cross multiply
   58,470.64x = 80,689.32 × 31,612.96
4. Step 4: Simplify right side
   58,470.64x = 2,550,828,245.59
5. Step 5: Solve for x
   x = 2,550,828,245.59/58,470.64
6. Step 6: Final answer
   x = 43,625.80