Finding the Fourth Proportional to 5,761.72, 8,637.54 and 4,889.86

Step by Step Solution

1. Step 1: Write the proportion equation
   5,761.72 : 8,637.54 = 4,889.86 : x
2. Step 2: Convert to fraction form
   5,761.72/8,637.54 = 4,889.86/x
3. Step 3: Cross multiply
   5,761.72x = 8,637.54 × 4,889.86
4. Step 4: Simplify right side
   5,761.72x = 42,236,361.34
5. Step 5: Solve for x
   x = 42,236,361.34/5,761.72
6. Step 6: Final answer
   x = 7,330.51