Finding the Fourth Proportional to 41,991.52, 58,003.68 and 31,362.72

Step by Step Solution

1. Step 1: Write the proportion equation
   41,991.52 : 58,003.68 = 31,362.72 : x
2. Step 2: Convert to fraction form
   41,991.52/58,003.68 = 31,362.72/x
3. Step 3: Cross multiply
   41,991.52x = 58,003.68 × 31,362.72
4. Step 4: Simplify right side
   41,991.52x = 1,819,153,174.81
5. Step 5: Solve for x
   x = 1,819,153,174.81/41,991.52
6. Step 6: Final answer
   x = 43,321.92