Finding the Fourth Proportional to 7,321.62, 10,100.34 and 7,038.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,321.62 : 10,100.34 = 7,038.72 : x
2. Step 2: Convert to fraction form
   7,321.62/10,100.34 = 7,038.72/x
3. Step 3: Cross multiply
   7,321.62x = 10,100.34 × 7,038.72
4. Step 4: Simplify right side
   7,321.62x = 71,093,465.16
5. Step 5: Solve for x
   x = 71,093,465.16/7,321.62
6. Step 6: Final answer
   x = 9,710.07