Finding the Fourth Proportional to 10,049.39, 13,865.34 and 7,918.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,049.39 : 13,865.34 = 7,918.30 : x
2. Step 2: Convert to fraction form
   10,049.39/13,865.34 = 7,918.30/x
3. Step 3: Cross multiply
   10,049.39x = 13,865.34 × 7,918.30
4. Step 4: Simplify right side
   10,049.39x = 109,789,921.72
5. Step 5: Solve for x
   x = 109,789,921.72/10,049.39
6. Step 6: Final answer
   x = 10,925.03