Finding the Fourth Proportional to 15,262.18, 21,061.89 and 8,548.09

Step by Step Solution

1. Step 1: Write the proportion equation
   15,262.18 : 21,061.89 = 8,548.09 : x
2. Step 2: Convert to fraction form
   15,262.18/21,061.89 = 8,548.09/x
3. Step 3: Cross multiply
   15,262.18x = 21,061.89 × 8,548.09
4. Step 4: Simplify right side
   15,262.18x = 180,038,878.64
5. Step 5: Solve for x
   x = 180,038,878.64/15,262.18
6. Step 6: Final answer
   x = 11,796.41