Finding the Fourth Proportional to 4,123.50, 5,698.20 and 3,126.93

Step by Step Solution

1. Step 1: Write the proportion equation
   4,123.50 : 5,698.20 = 3,126.93 : x
2. Step 2: Convert to fraction form
   4,123.50/5,698.20 = 3,126.93/x
3. Step 3: Cross multiply
   4,123.50x = 5,698.20 × 3,126.93
4. Step 4: Simplify right side
   4,123.50x = 17,817,856.89
5. Step 5: Solve for x
   x = 17,817,856.89/4,123.50
6. Step 6: Final answer
   x = 4,321.05