Finding the Fourth Proportional to 10,429.08, 15,650.91 and 7,145.34

Step by Step Solution

1. Step 1: Write the proportion equation
   10,429.08 : 15,650.91 = 7,145.34 : x
2. Step 2: Convert to fraction form
   10,429.08/15,650.91 = 7,145.34/x
3. Step 3: Cross multiply
   10,429.08x = 15,650.91 × 7,145.34
4. Step 4: Simplify right side
   10,429.08x = 111,831,073.26
5. Step 5: Solve for x
   x = 111,831,073.26/10,429.08
6. Step 6: Final answer
   x = 10,723.00