Finding the Fourth Proportional to 9,153.18, 12,631.05 and 4,961.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,153.18 : 12,631.05 = 4,961.34 : x
2. Step 2: Convert to fraction form
   9,153.18/12,631.05 = 4,961.34/x
3. Step 3: Cross multiply
   9,153.18x = 12,631.05 × 4,961.34
4. Step 4: Simplify right side
   9,153.18x = 62,666,933.61
5. Step 5: Solve for x
   x = 62,666,933.61/9,153.18
6. Step 6: Final answer
   x = 6,846.47