Finding the Fourth Proportional to 9,499.77, 13,109.47 and 5,250.65

Step by Step Solution

1. Step 1: Write the proportion equation
   9,499.77 : 13,109.47 = 5,250.65 : x
2. Step 2: Convert to fraction form
   9,499.77/13,109.47 = 5,250.65/x
3. Step 3: Cross multiply
   9,499.77x = 13,109.47 × 5,250.65
4. Step 4: Simplify right side
   9,499.77x = 68,833,159.98
5. Step 5: Solve for x
   x = 68,833,159.98/9,499.77
6. Step 6: Final answer
   x = 7,245.77