Finding the Fourth Proportional to 15,294.17, 21,112.43 and 9,327.98

Step by Step Solution

1. Step 1: Write the proportion equation
   15,294.17 : 21,112.43 = 9,327.98 : x
2. Step 2: Convert to fraction form
   15,294.17/21,112.43 = 9,327.98/x
3. Step 3: Cross multiply
   15,294.17x = 21,112.43 × 9,327.98
4. Step 4: Simplify right side
   15,294.17x = 196,936,172.59
5. Step 5: Solve for x
   x = 196,936,172.59/15,294.17
6. Step 6: Final answer
   x = 12,876.56