Finding the Fourth Proportional to 9,700.45, 14,557.04 and 5,321

Step by Step Solution

1. Step 1: Write the proportion equation
   9,700.45 : 14,557.04 = 5,321 : x
2. Step 2: Convert to fraction form
   9,700.45/14,557.04 = 5,321/x
3. Step 3: Cross multiply
   9,700.45x = 14,557.04 × 5,321
4. Step 4: Simplify right side
   9,700.45x = 77,458,009.84
5. Step 5: Solve for x
   x = 77,458,009.84/9,700.45
6. Step 6: Final answer
   x = 7,984.99