Finding the Fourth Proportional to 21,890.90, 32,841.16 and 7,101.32

Step by Step Solution

1. Step 1: Write the proportion equation
   21,890.90 : 32,841.16 = 7,101.32 : x
2. Step 2: Convert to fraction form
   21,890.90/32,841.16 = 7,101.32/x
3. Step 3: Cross multiply
   21,890.90x = 32,841.16 × 7,101.32
4. Step 4: Simplify right side
   21,890.90x = 233,215,404.37
5. Step 5: Solve for x
   x = 233,215,404.37/21,890.90
6. Step 6: Final answer
   x = 10,653.53