Finding the Fourth Proportional to 9,700.31, 14,552.63 and 5,315.51

Step by Step Solution

1. Step 1: Write the proportion equation
   9,700.31 : 14,552.63 = 5,315.51 : x
2. Step 2: Convert to fraction form
   9,700.31/14,552.63 = 5,315.51/x
3. Step 3: Cross multiply
   9,700.31x = 14,552.63 × 5,315.51
4. Step 4: Simplify right side
   9,700.31x = 77,354,623.71
5. Step 5: Solve for x
   x = 77,354,623.71/9,700.31
6. Step 6: Final answer
   x = 7,974.45