Finding the Fourth Proportional to 5,374.86, 8,061.63 and 3,406.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,374.86 : 8,061.63 = 3,406.56 : x
2. Step 2: Convert to fraction form
   5,374.86/8,061.63 = 3,406.56/x
3. Step 3: Cross multiply
   5,374.86x = 8,061.63 × 3,406.56
4. Step 4: Simplify right side
   5,374.86x = 27,462,426.29
5. Step 5: Solve for x
   x = 27,462,426.29/5,374.86
6. Step 6: Final answer
   x = 5,109.42