Finding the Fourth Proportional to 9,487.32, 13,088.88 and 5,507.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,487.32 : 13,088.88 = 5,507.76 : x
2. Step 2: Convert to fraction form
   9,487.32/13,088.88 = 5,507.76/x
3. Step 3: Cross multiply
   9,487.32x = 13,088.88 × 5,507.76
4. Step 4: Simplify right side
   9,487.32x = 72,090,409.71
5. Step 5: Solve for x
   x = 72,090,409.71/9,487.32
6. Step 6: Final answer
   x = 7,598.61