Finding the Fourth Proportional to 5,123.33, 7,070.32 and 2,885.29

Step by Step Solution

1. Step 1: Write the proportion equation
   5,123.33 : 7,070.32 = 2,885.29 : x
2. Step 2: Convert to fraction form
   5,123.33/7,070.32 = 2,885.29/x
3. Step 3: Cross multiply
   5,123.33x = 7,070.32 × 2,885.29
4. Step 4: Simplify right side
   5,123.33x = 20,399,923.59
5. Step 5: Solve for x
   x = 20,399,923.59/5,123.33
6. Step 6: Final answer
   x = 3,981.77