Finding the Fourth Proportional to 21,665.93, 32,492.43 and 9,185.75

Step by Step Solution

1. Step 1: Write the proportion equation
   21,665.93 : 32,492.43 = 9,185.75 : x
2. Step 2: Convert to fraction form
   21,665.93/32,492.43 = 9,185.75/x
3. Step 3: Cross multiply
   21,665.93x = 32,492.43 × 9,185.75
4. Step 4: Simplify right side
   21,665.93x = 298,467,130.48
5. Step 5: Solve for x
   x = 298,467,130.48/21,665.93
6. Step 6: Final answer
   x = 13,775.88