Finding the Fourth Proportional to 5,290.47, 7,300.46 and 2,900.06

Step by Step Solution

1. Step 1: Write the proportion equation
   5,290.47 : 7,300.46 = 2,900.06 : x
2. Step 2: Convert to fraction form
   5,290.47/7,300.46 = 2,900.06/x
3. Step 3: Cross multiply
   5,290.47x = 7,300.46 × 2,900.06
4. Step 4: Simplify right side
   5,290.47x = 21,171,775.78
5. Step 5: Solve for x
   x = 21,171,775.78/5,290.47
6. Step 6: Final answer
   x = 4,001.87