Finding the Fourth Proportional to 9,410.35, 12,981.39 and 5,631.70

Step by Step Solution

1. Step 1: Write the proportion equation
   9,410.35 : 12,981.39 = 5,631.70 : x
2. Step 2: Convert to fraction form
   9,410.35/12,981.39 = 5,631.70/x
3. Step 3: Cross multiply
   9,410.35x = 12,981.39 × 5,631.70
4. Step 4: Simplify right side
   9,410.35x = 73,107,294.06
5. Step 5: Solve for x
   x = 73,107,294.06/9,410.35
6. Step 6: Final answer
   x = 7,768.82