Finding the Fourth Proportional to 9,788.93, 14,671.09 and 7,021

Step by Step Solution

1. Step 1: Write the proportion equation
   9,788.93 : 14,671.09 = 7,021 : x
2. Step 2: Convert to fraction form
   9,788.93/14,671.09 = 7,021/x
3. Step 3: Cross multiply
   9,788.93x = 14,671.09 × 7,021
4. Step 4: Simplify right side
   9,788.93x = 103,005,722.89
5. Step 5: Solve for x
   x = 103,005,722.89/9,788.93
6. Step 6: Final answer
   x = 10,522.67