Finding the Fourth Proportional to 8,071.56, 11,139.30 and 4,929.48

Step by Step Solution

1. Step 1: Write the proportion equation
   8,071.56 : 11,139.30 = 4,929.48 : x
2. Step 2: Convert to fraction form
   8,071.56/11,139.30 = 4,929.48/x
3. Step 3: Cross multiply
   8,071.56x = 11,139.30 × 4,929.48
4. Step 4: Simplify right side
   8,071.56x = 54,910,956.56
5. Step 5: Solve for x
   x = 54,910,956.56/8,071.56
6. Step 6: Final answer
   x = 6,803.02