Finding the Fourth Proportional to 10,066.30, 13,891.63 and 5,590.34

Step by Step Solution

1. Step 1: Write the proportion equation
   10,066.30 : 13,891.63 = 5,590.34 : x
2. Step 2: Convert to fraction form
   10,066.30/13,891.63 = 5,590.34/x
3. Step 3: Cross multiply
   10,066.30x = 13,891.63 × 5,590.34
4. Step 4: Simplify right side
   10,066.30x = 77,658,934.85
5. Step 5: Solve for x
   x = 77,658,934.85/10,066.30
6. Step 6: Final answer
   x = 7,714.74