Finding the Fourth Proportional to 82,131.36, 123,196.83 and 19,801.86

Step by Step Solution

1. Step 1: Write the proportion equation
   82,131.36 : 123,196.83 = 19,801.86 : x
2. Step 2: Convert to fraction form
   82,131.36/123,196.83 = 19,801.86/x
3. Step 3: Cross multiply
   82,131.36x = 123,196.83 × 19,801.86
4. Step 4: Simplify right side
   82,131.36x = 2,439,526,380.10
5. Step 5: Solve for x
   x = 2,439,526,380.10/82,131.36
6. Step 6: Final answer
   x = 29,702.74