Finding the Fourth Proportional to 14,590.82, 21,885.27 and 7,188.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,590.82 : 21,885.27 = 7,188.72 : x
2. Step 2: Convert to fraction form
   14,590.82/21,885.27 = 7,188.72/x
3. Step 3: Cross multiply
   14,590.82x = 21,885.27 × 7,188.72
4. Step 4: Simplify right side
   14,590.82x = 157,327,078.15
5. Step 5: Solve for x
   x = 157,327,078.15/14,590.82
6. Step 6: Final answer
   x = 10,782.61