Finding the Fourth Proportional to 58,470.22, 80,688.90 and 31,612.72

Step by Step Solution

1. Step 1: Write the proportion equation
   58,470.22 : 80,688.90 = 31,612.72 : x
2. Step 2: Convert to fraction form
   58,470.22/80,688.90 = 31,612.72/x
3. Step 3: Cross multiply
   58,470.22x = 80,688.90 × 31,612.72
4. Step 4: Simplify right side
   58,470.22x = 2,550,795,602.81
5. Step 5: Solve for x
   x = 2,550,795,602.81/58,470.22
6. Step 6: Final answer
   x = 43,625.55