Finding the Fourth Proportional to 5,405.56, 8,103.54 and 2,592.86

Step by Step Solution

1. Step 1: Write the proportion equation
   5,405.56 : 8,103.54 = 2,592.86 : x
2. Step 2: Convert to fraction form
   5,405.56/8,103.54 = 2,592.86/x
3. Step 3: Cross multiply
   5,405.56x = 8,103.54 × 2,592.86
4. Step 4: Simplify right side
   5,405.56x = 21,011,359.51
5. Step 5: Solve for x
   x = 21,011,359.51/5,405.56
6. Step 6: Final answer
   x = 3,886.99