Finding the Fourth Proportional to 58,738.72, 81,059.33 and 31,881.20

Step by Step Solution

1. Step 1: Write the proportion equation
   58,738.72 : 81,059.33 = 31,881.20 : x
2. Step 2: Convert to fraction form
   58,738.72/81,059.33 = 31,881.20/x
3. Step 3: Cross multiply
   58,738.72x = 81,059.33 × 31,881.20
4. Step 4: Simplify right side
   58,738.72x = 2,584,268,386.00
5. Step 5: Solve for x
   x = 2,584,268,386.00/58,738.72
6. Step 6: Final answer
   x = 43,995.99