Finding the Fourth Proportional to 9,416.42, 12,994.53 and 5,438.81

Step by Step Solution

1. Step 1: Write the proportion equation
   9,416.42 : 12,994.53 = 5,438.81 : x
2. Step 2: Convert to fraction form
   9,416.42/12,994.53 = 5,438.81/x
3. Step 3: Cross multiply
   9,416.42x = 12,994.53 × 5,438.81
4. Step 4: Simplify right side
   9,416.42x = 70,674,791.80
5. Step 5: Solve for x
   x = 70,674,791.80/9,416.42
6. Step 6: Final answer
   x = 7,505.49