Finding the Fourth Proportional to 10,345.34, 15,513.42 and 4,722.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,345.34 : 15,513.42 = 4,722.86 : x
2. Step 2: Convert to fraction form
   10,345.34/15,513.42 = 4,722.86/x
3. Step 3: Cross multiply
   10,345.34x = 15,513.42 × 4,722.86
4. Step 4: Simplify right side
   10,345.34x = 73,267,710.78
5. Step 5: Solve for x
   x = 73,267,710.78/10,345.34
6. Step 6: Final answer
   x = 7,082.19