Finding the Fourth Proportional to 104,144.78, 143,719.52 and 56,398.12

Step by Step Solution

1. Step 1: Write the proportion equation
   104,144.78 : 143,719.52 = 56,398.12 : x
2. Step 2: Convert to fraction form
   104,144.78/143,719.52 = 56,398.12/x
3. Step 3: Cross multiply
   104,144.78x = 143,719.52 × 56,398.12
4. Step 4: Simplify right side
   104,144.78x = 8,105,510,094.01
5. Step 5: Solve for x
   x = 8,105,510,094.01/104,144.78
6. Step 6: Final answer
   x = 77,829.25