Finding the Fourth Proportional to 5,042.74, 7,569.78 and 2,123.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,042.74 : 7,569.78 = 2,123.50 : x
2. Step 2: Convert to fraction form
   5,042.74/7,569.78 = 2,123.50/x
3. Step 3: Cross multiply
   5,042.74x = 7,569.78 × 2,123.50
4. Step 4: Simplify right side
   5,042.74x = 16,074,427.83
5. Step 5: Solve for x
   x = 16,074,427.83/5,042.74
6. Step 6: Final answer
   x = 3,187.64