Finding the Fourth Proportional to 10,053.72, 13,871.88 and 5,805

Step by Step Solution

1. Step 1: Write the proportion equation
   10,053.72 : 13,871.88 = 5,805 : x
2. Step 2: Convert to fraction form
   10,053.72/13,871.88 = 5,805/x
3. Step 3: Cross multiply
   10,053.72x = 13,871.88 × 5,805
4. Step 4: Simplify right side
   10,053.72x = 80,526,263.40
5. Step 5: Solve for x
   x = 80,526,263.40/10,053.72
6. Step 6: Final answer
   x = 8,009.60