Finding the Fourth Proportional to 9,700.18, 13,386.57 and 5,451.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,700.18 : 13,386.57 = 5,451.98 : x
2. Step 2: Convert to fraction form
   9,700.18/13,386.57 = 5,451.98/x
3. Step 3: Cross multiply
   9,700.18x = 13,386.57 × 5,451.98
4. Step 4: Simplify right side
   9,700.18x = 72,983,311.91
5. Step 5: Solve for x
   x = 72,983,311.91/9,700.18
6. Step 6: Final answer
   x = 7,523.91