Finding the Fourth Proportional to 13,251, 19,881.18 and 5,854.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,251 : 19,881.18 = 5,854.50 : x
2. Step 2: Convert to fraction form
   13,251/19,881.18 = 5,854.50/x
3. Step 3: Cross multiply
   13,251x = 19,881.18 × 5,854.50
4. Step 4: Simplify right side
   13,251x = 116,394,368.31
5. Step 5: Solve for x
   x = 116,394,368.31/13,251
6. Step 6: Final answer
   x = 8,783.82