Finding the Fourth Proportional to 10,072.16, 15,050.50 and 7,687.04

Step by Step Solution

1. Step 1: Write the proportion equation
   10,072.16 : 15,050.50 = 7,687.04 : x
2. Step 2: Convert to fraction form
   10,072.16/15,050.50 = 7,687.04/x
3. Step 3: Cross multiply
   10,072.16x = 15,050.50 × 7,687.04
4. Step 4: Simplify right side
   10,072.16x = 115,693,795.52
5. Step 5: Solve for x
   x = 115,693,795.52/10,072.16
6. Step 6: Final answer
   x = 11,486.49