Finding the Fourth Proportional to 10,618.89, 15,927.72 and 5,076.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,618.89 : 15,927.72 = 5,076.06 : x
2. Step 2: Convert to fraction form
   10,618.89/15,927.72 = 5,076.06/x
3. Step 3: Cross multiply
   10,618.89x = 15,927.72 × 5,076.06
4. Step 4: Simplify right side
   10,618.89x = 80,850,062.38
5. Step 5: Solve for x
   x = 80,850,062.38/10,618.89
6. Step 6: Final answer
   x = 7,613.80