Finding the Fourth Proportional to 6,870.96, 9,472.78 and 5,459.34

Step by Step Solution

1. Step 1: Write the proportion equation
   6,870.96 : 9,472.78 = 5,459.34 : x
2. Step 2: Convert to fraction form
   6,870.96/9,472.78 = 5,459.34/x
3. Step 3: Cross multiply
   6,870.96x = 9,472.78 × 5,459.34
4. Step 4: Simplify right side
   6,870.96x = 51,715,126.77
5. Step 5: Solve for x
   x = 51,715,126.77/6,870.96
6. Step 6: Final answer
   x = 7,526.62