Finding the Fourth Proportional to 9,501.61, 13,112.24 and 5,309.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,501.61 : 13,112.24 = 5,309.86 : x
2. Step 2: Convert to fraction form
   9,501.61/13,112.24 = 5,309.86/x
3. Step 3: Cross multiply
   9,501.61x = 13,112.24 × 5,309.86
4. Step 4: Simplify right side
   9,501.61x = 69,624,066.58
5. Step 5: Solve for x
   x = 69,624,066.58/9,501.61
6. Step 6: Final answer
   x = 7,327.61