Finding the Fourth Proportional to 11,780.78, 17,656.58 and 5,934.20

Step by Step Solution

1. Step 1: Write the proportion equation
   11,780.78 : 17,656.58 = 5,934.20 : x
2. Step 2: Convert to fraction form
   11,780.78/17,656.58 = 5,934.20/x
3. Step 3: Cross multiply
   11,780.78x = 17,656.58 × 5,934.20
4. Step 4: Simplify right side
   11,780.78x = 104,777,603.59
5. Step 5: Solve for x
   x = 104,777,603.59/11,780.78
6. Step 6: Final answer
   x = 8,893.95