Finding the Fourth Proportional to 58,646.81, 80,932.77 and 31,789.43

Step by Step Solution

1. Step 1: Write the proportion equation
   58,646.81 : 80,932.77 = 31,789.43 : x
2. Step 2: Convert to fraction form
   58,646.81/80,932.77 = 31,789.43/x
3. Step 3: Cross multiply
   58,646.81x = 80,932.77 × 31,789.43
4. Step 4: Simplify right side
   58,646.81x = 2,572,806,063.01
5. Step 5: Solve for x
   x = 2,572,806,063.01/58,646.81
6. Step 6: Final answer
   x = 43,869.50