Finding the Fourth Proportional to 10,722.61, 16,086.06 and 3,702.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,722.61 : 16,086.06 = 3,702.88 : x
2. Step 2: Convert to fraction form
   10,722.61/16,086.06 = 3,702.88/x
3. Step 3: Cross multiply
   10,722.61x = 16,086.06 × 3,702.88
4. Step 4: Simplify right side
   10,722.61x = 59,564,709.64
5. Step 5: Solve for x
   x = 59,564,709.64/10,722.61
6. Step 6: Final answer
   x = 5,555.06