Finding the Fourth Proportional to 10,830.36, 16,253.68 and 7,312.04

Step by Step Solution

1. Step 1: Write the proportion equation
   10,830.36 : 16,253.68 = 7,312.04 : x
2. Step 2: Convert to fraction form
   10,830.36/16,253.68 = 7,312.04/x
3. Step 3: Cross multiply
   10,830.36x = 16,253.68 × 7,312.04
4. Step 4: Simplify right side
   10,830.36x = 118,847,558.31
5. Step 5: Solve for x
   x = 118,847,558.31/10,830.36
6. Step 6: Final answer
   x = 10,973.56