Finding the Fourth Proportional to 9,181.86, 13,775.57 and 3,914.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,181.86 : 13,775.57 = 3,914.12 : x
2. Step 2: Convert to fraction form
   9,181.86/13,775.57 = 3,914.12/x
3. Step 3: Cross multiply
   9,181.86x = 13,775.57 × 3,914.12
4. Step 4: Simplify right side
   9,181.86x = 53,919,263.59
5. Step 5: Solve for x
   x = 53,919,263.59/9,181.86
6. Step 6: Final answer
   x = 5,872.37