Finding the Fourth Proportional to 11,877.42, 17,793.45 and 7,198.86

Step by Step Solution

1. Step 1: Write the proportion equation
   11,877.42 : 17,793.45 = 7,198.86 : x
2. Step 2: Convert to fraction form
   11,877.42/17,793.45 = 7,198.86/x
3. Step 3: Cross multiply
   11,877.42x = 17,793.45 × 7,198.86
4. Step 4: Simplify right side
   11,877.42x = 128,092,555.47
5. Step 5: Solve for x
   x = 128,092,555.47/11,877.42
6. Step 6: Final answer
   x = 10,784.54