Finding the Fourth Proportional to 8,732.21, 12,047.94 and 5,377.59

Step by Step Solution

1. Step 1: Write the proportion equation
   8,732.21 : 12,047.94 = 5,377.59 : x
2. Step 2: Convert to fraction form
   8,732.21/12,047.94 = 5,377.59/x
3. Step 3: Cross multiply
   8,732.21x = 12,047.94 × 5,377.59
4. Step 4: Simplify right side
   8,732.21x = 64,788,881.66
5. Step 5: Solve for x
   x = 64,788,881.66/8,732.21
6. Step 6: Final answer
   x = 7,419.53