Finding the Fourth Proportional to 8,423.68, 12,638.72 and 3,803.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,423.68 : 12,638.72 = 3,803.52 : x
2. Step 2: Convert to fraction form
   8,423.68/12,638.72 = 3,803.52/x
3. Step 3: Cross multiply
   8,423.68x = 12,638.72 × 3,803.52
4. Step 4: Simplify right side
   8,423.68x = 48,071,624.29
5. Step 5: Solve for x
   x = 48,071,624.29/8,423.68
6. Step 6: Final answer
   x = 5,706.72