Finding the Fourth Proportional to 9,471.55, 13,072.28 and 5,698.53

Step by Step Solution

1. Step 1: Write the proportion equation
   9,471.55 : 13,072.28 = 5,698.53 : x
2. Step 2: Convert to fraction form
   9,471.55/13,072.28 = 5,698.53/x
3. Step 3: Cross multiply
   9,471.55x = 13,072.28 × 5,698.53
4. Step 4: Simplify right side
   9,471.55x = 74,492,685.89
5. Step 5: Solve for x
   x = 74,492,685.89/9,471.55
6. Step 6: Final answer
   x = 7,864.89