Finding the Fourth Proportional to 9,428.42, 13,013.56 and 5,448.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,428.42 : 13,013.56 = 5,448.96 : x
2. Step 2: Convert to fraction form
   9,428.42/13,013.56 = 5,448.96/x
3. Step 3: Cross multiply
   9,428.42x = 13,013.56 × 5,448.96
4. Step 4: Simplify right side
   9,428.42x = 70,910,374.71
5. Step 5: Solve for x
   x = 70,910,374.71/9,428.42
6. Step 6: Final answer
   x = 7,520.92