Finding the Fourth Proportional to 9,181.32, 12,670.32 and 4,989.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,181.32 : 12,670.32 = 4,989.57 : x
2. Step 2: Convert to fraction form
   9,181.32/12,670.32 = 4,989.57/x
3. Step 3: Cross multiply
   9,181.32x = 12,670.32 × 4,989.57
4. Step 4: Simplify right side
   9,181.32x = 63,219,448.56
5. Step 5: Solve for x
   x = 63,219,448.56/9,181.32
6. Step 6: Final answer
   x = 6,885.66