Finding the Fourth Proportional to 9,502.51, 13,111.99 and 5,309.95

Step by Step Solution

1. Step 1: Write the proportion equation
   9,502.51 : 13,111.99 = 5,309.95 : x
2. Step 2: Convert to fraction form
   9,502.51/13,111.99 = 5,309.95/x
3. Step 3: Cross multiply
   9,502.51x = 13,111.99 × 5,309.95
4. Step 4: Simplify right side
   9,502.51x = 69,624,011.30
5. Step 5: Solve for x
   x = 69,624,011.30/9,502.51
6. Step 6: Final answer
   x = 7,326.91