Finding the Fourth Proportional to 9,686.17, 13,365.43 and 5,437.45

Step by Step Solution

1. Step 1: Write the proportion equation
   9,686.17 : 13,365.43 = 5,437.45 : x
2. Step 2: Convert to fraction form
   9,686.17/13,365.43 = 5,437.45/x
3. Step 3: Cross multiply
   9,686.17x = 13,365.43 × 5,437.45
4. Step 4: Simplify right side
   9,686.17x = 72,673,857.35
5. Step 5: Solve for x
   x = 72,673,857.35/9,686.17
6. Step 6: Final answer
   x = 7,502.85