Finding the Fourth Proportional to 9,700.50, 13,384.62 and 5,720.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,700.50 : 13,384.62 = 5,720.16 : x
2. Step 2: Convert to fraction form
   9,700.50/13,384.62 = 5,720.16/x
3. Step 3: Cross multiply
   9,700.50x = 13,384.62 × 5,720.16
4. Step 4: Simplify right side
   9,700.50x = 76,562,167.94
5. Step 5: Solve for x
   x = 76,562,167.94/9,700.50
6. Step 6: Final answer
   x = 7,892.60