Finding the Fourth Proportional to 8,456.71, 12,624.56 and 7,349.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,456.71 : 12,624.56 = 7,349.86 : x
2. Step 2: Convert to fraction form
   8,456.71/12,624.56 = 7,349.86/x
3. Step 3: Cross multiply
   8,456.71x = 12,624.56 × 7,349.86
4. Step 4: Simplify right side
   8,456.71x = 92,788,748.56
5. Step 5: Solve for x
   x = 92,788,748.56/8,456.71
6. Step 6: Final answer
   x = 10,972.20