Finding the Fourth Proportional to 10,508.31, 15,762.43 and 3,113.34

Step by Step Solution

1. Step 1: Write the proportion equation
   10,508.31 : 15,762.43 = 3,113.34 : x
2. Step 2: Convert to fraction form
   10,508.31/15,762.43 = 3,113.34/x
3. Step 3: Cross multiply
   10,508.31x = 15,762.43 × 3,113.34
4. Step 4: Simplify right side
   10,508.31x = 49,073,803.82
5. Step 5: Solve for x
   x = 49,073,803.82/10,508.31
6. Step 6: Final answer
   x = 4,670.00