Finding the Fourth Proportional to 5,320.71, 7,342.20 and 2,930.58

Step by Step Solution

1. Step 1: Write the proportion equation
   5,320.71 : 7,342.20 = 2,930.58 : x
2. Step 2: Convert to fraction form
   5,320.71/7,342.20 = 2,930.58/x
3. Step 3: Cross multiply
   5,320.71x = 7,342.20 × 2,930.58
4. Step 4: Simplify right side
   5,320.71x = 21,516,904.48
5. Step 5: Solve for x
   x = 21,516,904.48/5,320.71
6. Step 6: Final answer
   x = 4,043.99