Finding the Fourth Proportional to 28,096.66, 42,147.51 and 7,320.34

Step by Step Solution

1. Step 1: Write the proportion equation
   28,096.66 : 42,147.51 = 7,320.34 : x
2. Step 2: Convert to fraction form
   28,096.66/42,147.51 = 7,320.34/x
3. Step 3: Cross multiply
   28,096.66x = 42,147.51 × 7,320.34
4. Step 4: Simplify right side
   28,096.66x = 308,534,103.35
5. Step 5: Solve for x
   x = 308,534,103.35/28,096.66
6. Step 6: Final answer
   x = 10,981.17