Finding the Fourth Proportional to 10,985.68, 16,482.18 and 7,302.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,985.68 : 16,482.18 = 7,302.40 : x
2. Step 2: Convert to fraction form
   10,985.68/16,482.18 = 7,302.40/x
3. Step 3: Cross multiply
   10,985.68x = 16,482.18 × 7,302.40
4. Step 4: Simplify right side
   10,985.68x = 120,359,471.23
5. Step 5: Solve for x
   x = 120,359,471.23/10,985.68
6. Step 6: Final answer
   x = 10,956.03