Finding the Fourth Proportional to 11,979.83, 17,985.57 and 10,236

Step by Step Solution

1. Step 1: Write the proportion equation
   11,979.83 : 17,985.57 = 10,236 : x
2. Step 2: Convert to fraction form
   11,979.83/17,985.57 = 10,236/x
3. Step 3: Cross multiply
   11,979.83x = 17,985.57 × 10,236
4. Step 4: Simplify right side
   11,979.83x = 184,100,294.52
5. Step 5: Solve for x
   x = 184,100,294.52/11,979.83
6. Step 6: Final answer
   x = 15,367.53