Finding the Fourth Proportional to 14,098.64, 19,456.71 and 7,811

Step by Step Solution

1. Step 1: Write the proportion equation
   14,098.64 : 19,456.71 = 7,811 : x
2. Step 2: Convert to fraction form
   14,098.64/19,456.71 = 7,811/x
3. Step 3: Cross multiply
   14,098.64x = 19,456.71 × 7,811
4. Step 4: Simplify right side
   14,098.64x = 151,976,361.81
5. Step 5: Solve for x
   x = 151,976,361.81/14,098.64
6. Step 6: Final answer
   x = 10,779.51