Finding the Fourth Proportional to 15,624.82, 21,562.56 and 9,337.18

Step by Step Solution

1. Step 1: Write the proportion equation
   15,624.82 : 21,562.56 = 9,337.18 : x
2. Step 2: Convert to fraction form
   15,624.82/21,562.56 = 9,337.18/x
3. Step 3: Cross multiply
   15,624.82x = 21,562.56 × 9,337.18
4. Step 4: Simplify right side
   15,624.82x = 201,333,503.98
5. Step 5: Solve for x
   x = 201,333,503.98/15,624.82
6. Step 6: Final answer
   x = 12,885.49