Finding the Fourth Proportional to 104,641.62, 144,404.69 and 56,895

Step by Step Solution

1. Step 1: Write the proportion equation
   104,641.62 : 144,404.69 = 56,895 : x
2. Step 2: Convert to fraction form
   104,641.62/144,404.69 = 56,895/x
3. Step 3: Cross multiply
   104,641.62x = 144,404.69 × 56,895
4. Step 4: Simplify right side
   104,641.62x = 8,215,904,837.55
5. Step 5: Solve for x
   x = 8,215,904,837.55/104,641.62
6. Step 6: Final answer
   x = 78,514.69