Finding the Fourth Proportional to 10,739.90, 14,818.71 and 10,385.93

Step by Step Solution

1. Step 1: Write the proportion equation
   10,739.90 : 14,818.71 = 10,385.93 : x
2. Step 2: Convert to fraction form
   10,739.90/14,818.71 = 10,385.93/x
3. Step 3: Cross multiply
   10,739.90x = 14,818.71 × 10,385.93
4. Step 4: Simplify right side
   10,739.90x = 153,906,160.74
5. Step 5: Solve for x
   x = 153,906,160.74/10,739.90
6. Step 6: Final answer
   x = 14,330.31