Finding the Fourth Proportional to 5,559.77, 8,335.71 and 2,784.45

Step by Step Solution

1. Step 1: Write the proportion equation
   5,559.77 : 8,335.71 = 2,784.45 : x
2. Step 2: Convert to fraction form
   5,559.77/8,335.71 = 2,784.45/x
3. Step 3: Cross multiply
   5,559.77x = 8,335.71 × 2,784.45
4. Step 4: Simplify right side
   5,559.77x = 23,210,367.71
5. Step 5: Solve for x
   x = 23,210,367.71/5,559.77
6. Step 6: Final answer
   x = 4,174.70