Finding the Fourth Proportional to 21,692.72, 32,547.18 and 8,554.25

Step by Step Solution

1. Step 1: Write the proportion equation
   21,692.72 : 32,547.18 = 8,554.25 : x
2. Step 2: Convert to fraction form
   21,692.72/32,547.18 = 8,554.25/x
3. Step 3: Cross multiply
   21,692.72x = 32,547.18 × 8,554.25
4. Step 4: Simplify right side
   21,692.72x = 278,416,509.01
5. Step 5: Solve for x
   x = 278,416,509.01/21,692.72
6. Step 6: Final answer
   x = 12,834.56