Finding the Fourth Proportional to 9,670.53, 13,344.88 and 5,478.81

Step by Step Solution

1. Step 1: Write the proportion equation
   9,670.53 : 13,344.88 = 5,478.81 : x
2. Step 2: Convert to fraction form
   9,670.53/13,344.88 = 5,478.81/x
3. Step 3: Cross multiply
   9,670.53x = 13,344.88 × 5,478.81
4. Step 4: Simplify right side
   9,670.53x = 73,114,061.99
5. Step 5: Solve for x
   x = 73,114,061.99/9,670.53
6. Step 6: Final answer
   x = 7,560.50