Finding the Fourth Proportional to 21,667.24, 32,494.38 and 7,813

Step by Step Solution

1. Step 1: Write the proportion equation
   21,667.24 : 32,494.38 = 7,813 : x
2. Step 2: Convert to fraction form
   21,667.24/32,494.38 = 7,813/x
3. Step 3: Cross multiply
   21,667.24x = 32,494.38 × 7,813
4. Step 4: Simplify right side
   21,667.24x = 253,878,590.94
5. Step 5: Solve for x
   x = 253,878,590.94/21,667.24
6. Step 6: Final answer
   x = 11,717.16