Finding the Fourth Proportional to 58,467.31, 80,684.90 and 31,609.81

Step by Step Solution

1. Step 1: Write the proportion equation
   58,467.31 : 80,684.90 = 31,609.81 : x
2. Step 2: Convert to fraction form
   58,467.31/80,684.90 = 31,609.81/x
3. Step 3: Cross multiply
   58,467.31x = 80,684.90 × 31,609.81
4. Step 4: Simplify right side
   58,467.31x = 2,550,434,545.96
5. Step 5: Solve for x
   x = 2,550,434,545.96/58,467.31
6. Step 6: Final answer
   x = 43,621.55