Finding the Fourth Proportional to 7,322.50, 10,985.15 and 2,940.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,322.50 : 10,985.15 = 2,940.31 : x
2. Step 2: Convert to fraction form
   7,322.50/10,985.15 = 2,940.31/x
3. Step 3: Cross multiply
   7,322.50x = 10,985.15 × 2,940.31
4. Step 4: Simplify right side
   7,322.50x = 32,299,746.40
5. Step 5: Solve for x
   x = 32,299,746.40/7,322.50
6. Step 6: Final answer
   x = 4,411.03