Finding the Fourth Proportional to 5,886.70, 8,123.61 and 3,498.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,886.70 : 8,123.61 = 3,498.31 : x
2. Step 2: Convert to fraction form
   5,886.70/8,123.61 = 3,498.31/x
3. Step 3: Cross multiply
   5,886.70x = 8,123.61 × 3,498.31
4. Step 4: Simplify right side
   5,886.70x = 28,418,885.79
5. Step 5: Solve for x
   x = 28,418,885.79/5,886.70
6. Step 6: Final answer
   x = 4,827.65