Finding the Fourth Proportional to 9,914.91, 13,682.62 and 5,377.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,914.91 : 13,682.62 = 5,377.59 : x
2. Step 2: Convert to fraction form
   9,914.91/13,682.62 = 5,377.59/x
3. Step 3: Cross multiply
   9,914.91x = 13,682.62 × 5,377.59
4. Step 4: Simplify right side
   9,914.91x = 73,579,527.21
5. Step 5: Solve for x
   x = 73,579,527.21/9,914.91
6. Step 6: Final answer
   x = 7,421.10