Finding the Fourth Proportional to 10,426.98, 14,385.63 and 7,906.47

Step by Step Solution

1. Step 1: Write the proportion equation
   10,426.98 : 14,385.63 = 7,906.47 : x
2. Step 2: Convert to fraction form
   10,426.98/14,385.63 = 7,906.47/x
3. Step 3: Cross multiply
   10,426.98x = 14,385.63 × 7,906.47
4. Step 4: Simplify right side
   10,426.98x = 113,739,552.03
5. Step 5: Solve for x
   x = 113,739,552.03/10,426.98
6. Step 6: Final answer
   x = 10,908.20