Finding the Fourth Proportional to 9,885.38, 13,641.96 and 5,906.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,885.38 : 13,641.96 = 5,906.84 : x
2. Step 2: Convert to fraction form
   9,885.38/13,641.96 = 5,906.84/x
3. Step 3: Cross multiply
   9,885.38x = 13,641.96 × 5,906.84
4. Step 4: Simplify right side
   9,885.38x = 80,580,875.01
5. Step 5: Solve for x
   x = 80,580,875.01/9,885.38
6. Step 6: Final answer
   x = 8,151.52