Finding the Fourth Proportional to 10,140.01, 13,992.87 and 5,663.73

Step by Step Solution

1. Step 1: Write the proportion equation
   10,140.01 : 13,992.87 = 5,663.73 : x
2. Step 2: Convert to fraction form
   10,140.01/13,992.87 = 5,663.73/x
3. Step 3: Cross multiply
   10,140.01x = 13,992.87 × 5,663.73
4. Step 4: Simplify right side
   10,140.01x = 79,251,837.61
5. Step 5: Solve for x
   x = 79,251,837.61/10,140.01
6. Step 6: Final answer
   x = 7,815.76