Finding the Fourth Proportional to 9,437.68, 13,022.86 and 5,188.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,437.68 : 13,022.86 = 5,188.04 : x
2. Step 2: Convert to fraction form
   9,437.68/13,022.86 = 5,188.04/x
3. Step 3: Cross multiply
   9,437.68x = 13,022.86 × 5,188.04
4. Step 4: Simplify right side
   9,437.68x = 67,563,063.27
5. Step 5: Solve for x
   x = 67,563,063.27/9,437.68
6. Step 6: Final answer
   x = 7,158.87