Finding the Fourth Proportional to 15,507.34, 21,404.05 and 8,796.96

Step by Step Solution

1. Step 1: Write the proportion equation
   15,507.34 : 21,404.05 = 8,796.96 : x
2. Step 2: Convert to fraction form
   15,507.34/21,404.05 = 8,796.96/x
3. Step 3: Cross multiply
   15,507.34x = 21,404.05 × 8,796.96
4. Step 4: Simplify right side
   15,507.34x = 188,290,549.70
5. Step 5: Solve for x
   x = 188,290,549.70/15,507.34
6. Step 6: Final answer
   x = 12,142.03