Finding the Fourth Proportional to 5,336.47, 7,363.59 and 2,978.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,336.47 : 7,363.59 = 2,978.15 : x
2. Step 2: Convert to fraction form
   5,336.47/7,363.59 = 2,978.15/x
3. Step 3: Cross multiply
   5,336.47x = 7,363.59 × 2,978.15
4. Step 4: Simplify right side
   5,336.47x = 21,929,875.56
5. Step 5: Solve for x
   x = 21,929,875.56/5,336.47
6. Step 6: Final answer
   x = 4,109.43