Finding the Fourth Proportional to 5,345.69, 7,377.22 and 2,987.82

Step by Step Solution

1. Step 1: Write the proportion equation
   5,345.69 : 7,377.22 = 2,987.82 : x
2. Step 2: Convert to fraction form
   5,345.69/7,377.22 = 2,987.82/x
3. Step 3: Cross multiply
   5,345.69x = 7,377.22 × 2,987.82
4. Step 4: Simplify right side
   5,345.69x = 22,041,816.43
5. Step 5: Solve for x
   x = 22,041,816.43/5,345.69
6. Step 6: Final answer
   x = 4,123.29