Finding the Fourth Proportional to 11,779.31, 16,239.72 and 10,093.49

Step by Step Solution

1. Step 1: Write the proportion equation
   11,779.31 : 16,239.72 = 10,093.49 : x
2. Step 2: Convert to fraction form
   11,779.31/16,239.72 = 10,093.49/x
3. Step 3: Cross multiply
   11,779.31x = 16,239.72 × 10,093.49
4. Step 4: Simplify right side
   11,779.31x = 163,915,451.42
5. Step 5: Solve for x
   x = 163,915,451.42/11,779.31
6. Step 6: Final answer
   x = 13,915.54