Finding the Fourth Proportional to 10,437.16, 15,647.47 and 5,168.45

Step by Step Solution

1. Step 1: Write the proportion equation
   10,437.16 : 15,647.47 = 5,168.45 : x
2. Step 2: Convert to fraction form
   10,437.16/15,647.47 = 5,168.45/x
3. Step 3: Cross multiply
   10,437.16x = 15,647.47 × 5,168.45
4. Step 4: Simplify right side
   10,437.16x = 80,873,166.32
5. Step 5: Solve for x
   x = 80,873,166.32/10,437.16
6. Step 6: Final answer
   x = 7,748.58