Finding the Fourth Proportional to 7,152.18, 10,724.76 and 2,990.94

Step by Step Solution

1. Step 1: Write the proportion equation
   7,152.18 : 10,724.76 = 2,990.94 : x
2. Step 2: Convert to fraction form
   7,152.18/10,724.76 = 2,990.94/x
3. Step 3: Cross multiply
   7,152.18x = 10,724.76 × 2,990.94
4. Step 4: Simplify right side
   7,152.18x = 32,077,113.67
5. Step 5: Solve for x
   x = 32,077,113.67/7,152.18
6. Step 6: Final answer
   x = 4,484.94