Finding the Fourth Proportional to 9,501.18, 13,111.71 and 5,309.70

Step by Step Solution

1. Step 1: Write the proportion equation
   9,501.18 : 13,111.71 = 5,309.70 : x
2. Step 2: Convert to fraction form
   9,501.18/13,111.71 = 5,309.70/x
3. Step 3: Cross multiply
   9,501.18x = 13,111.71 × 5,309.70
4. Step 4: Simplify right side
   9,501.18x = 69,619,246.59
5. Step 5: Solve for x
   x = 69,619,246.59/9,501.18
6. Step 6: Final answer
   x = 7,327.43