Finding the Fourth Proportional to 9,700.81, 14,557.59 and 5,321.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,700.81 : 14,557.59 = 5,321.34 : x
2. Step 2: Convert to fraction form
   9,700.81/14,557.59 = 5,321.34/x
3. Step 3: Cross multiply
   9,700.81x = 14,557.59 × 5,321.34
4. Step 4: Simplify right side
   9,700.81x = 77,465,885.97
5. Step 5: Solve for x
   x = 77,465,885.97/9,700.81
6. Step 6: Final answer
   x = 7,985.51