Finding the Fourth Proportional to 143,072.10, 214,705.35 and 79,892.10

Step by Step Solution

1. Step 1: Write the proportion equation
   143,072.10 : 214,705.35 = 79,892.10 : x
2. Step 2: Convert to fraction form
   143,072.10/214,705.35 = 79,892.10/x
3. Step 3: Cross multiply
   143,072.10x = 214,705.35 × 79,892.10
4. Step 4: Simplify right side
   143,072.10x = 17,153,261,292.74
5. Step 5: Solve for x
   x = 17,153,261,292.74/143,072.10
6. Step 6: Final answer
   x = 119,892.43