Finding the Fourth Proportional to 5,061.90, 7,590.40 and 2,870.04

Step by Step Solution

1. Step 1: Write the proportion equation
   5,061.90 : 7,590.40 = 2,870.04 : x
2. Step 2: Convert to fraction form
   5,061.90/7,590.40 = 2,870.04/x
3. Step 3: Cross multiply
   5,061.90x = 7,590.40 × 2,870.04
4. Step 4: Simplify right side
   5,061.90x = 21,784,751.62
5. Step 5: Solve for x
   x = 21,784,751.62/5,061.90
6. Step 6: Final answer
   x = 4,303.67