Finding the Fourth Proportional to 72,404.91, 108,603.39 and 19,810.59

Step by Step Solution

1. Step 1: Write the proportion equation
   72,404.91 : 108,603.39 = 19,810.59 : x
2. Step 2: Convert to fraction form
   72,404.91/108,603.39 = 19,810.59/x
3. Step 3: Cross multiply
   72,404.91x = 108,603.39 × 19,810.59
4. Step 4: Simplify right side
   72,404.91x = 2,151,497,231.90
5. Step 5: Solve for x
   x = 2,151,497,231.90/72,404.91
6. Step 6: Final answer
   x = 29,714.80