Finding the Fourth Proportional to 9,877.82, 13,631.41 and 5,401.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,877.82 : 13,631.41 = 5,401.56 : x
2. Step 2: Convert to fraction form
   9,877.82/13,631.41 = 5,401.56/x
3. Step 3: Cross multiply
   9,877.82x = 13,631.41 × 5,401.56
4. Step 4: Simplify right side
   9,877.82x = 73,630,817.91
5. Step 5: Solve for x
   x = 73,630,817.91/9,877.82
6. Step 6: Final answer
   x = 7,454.16