Finding the Fourth Proportional to 9,487.43, 13,091.96 and 5,507.79

Step by Step Solution

1. Step 1: Write the proportion equation
   9,487.43 : 13,091.96 = 5,507.79 : x
2. Step 2: Convert to fraction form
   9,487.43/13,091.96 = 5,507.79/x
3. Step 3: Cross multiply
   9,487.43x = 13,091.96 × 5,507.79
4. Step 4: Simplify right side
   9,487.43x = 72,107,738.83
5. Step 5: Solve for x
   x = 72,107,738.83/9,487.43
6. Step 6: Final answer
   x = 7,600.35