Finding the Fourth Proportional to 103,647.31, 143,031.61 and 58,325.27

Step by Step Solution

1. Step 1: Write the proportion equation
   103,647.31 : 143,031.61 = 58,325.27 : x
2. Step 2: Convert to fraction form
   103,647.31/143,031.61 = 58,325.27/x
3. Step 3: Cross multiply
   103,647.31x = 143,031.61 × 58,325.27
4. Step 4: Simplify right side
   103,647.31x = 8,342,356,556.63
5. Step 5: Solve for x
   x = 8,342,356,556.63/103,647.31
6. Step 6: Final answer
   x = 80,487.92