Finding the Fourth Proportional to 10,522.50, 15,783.78 and 2,731.38

Step by Step Solution

1. Step 1: Write the proportion equation
   10,522.50 : 15,783.78 = 2,731.38 : x
2. Step 2: Convert to fraction form
   10,522.50/15,783.78 = 2,731.38/x
3. Step 3: Cross multiply
   10,522.50x = 15,783.78 × 2,731.38
4. Step 4: Simplify right side
   10,522.50x = 43,111,501.02
5. Step 5: Solve for x
   x = 43,111,501.02/10,522.50
6. Step 6: Final answer
   x = 4,097.08