Finding the Fourth Proportional to 9,487.33, 13,091.79 and 5,507.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,487.33 : 13,091.79 = 5,507.80 : x
2. Step 2: Convert to fraction form
   9,487.33/13,091.79 = 5,507.80/x
3. Step 3: Cross multiply
   9,487.33x = 13,091.79 × 5,507.80
4. Step 4: Simplify right side
   9,487.33x = 72,106,960.96
5. Step 5: Solve for x
   x = 72,106,960.96/9,487.33
6. Step 6: Final answer
   x = 7,600.34