Finding the Fourth Proportional to 9,375.12, 12,938.81 and 5,343.44

Step by Step Solution

1. Step 1: Write the proportion equation
   9,375.12 : 12,938.81 = 5,343.44 : x
2. Step 2: Convert to fraction form
   9,375.12/12,938.81 = 5,343.44/x
3. Step 3: Cross multiply
   9,375.12x = 12,938.81 × 5,343.44
4. Step 4: Simplify right side
   9,375.12x = 69,137,663.50
5. Step 5: Solve for x
   x = 69,137,663.50/9,375.12
6. Step 6: Final answer
   x = 7,374.59