Finding the Fourth Proportional to 11,450.50, 15,795.89 and 7,140.05

Step by Step Solution

1. Step 1: Write the proportion equation
   11,450.50 : 15,795.89 = 7,140.05 : x
2. Step 2: Convert to fraction form
   11,450.50/15,795.89 = 7,140.05/x
3. Step 3: Cross multiply
   11,450.50x = 15,795.89 × 7,140.05
4. Step 4: Simplify right side
   11,450.50x = 112,783,444.39
5. Step 5: Solve for x
   x = 112,783,444.39/11,450.50
6. Step 6: Final answer
   x = 9,849.65