Finding the Fourth Proportional to 144,784.77, 217,620 and 141,684.09

Step by Step Solution

1. Step 1: Write the proportion equation
   144,784.77 : 217,620 = 141,684.09 : x
2. Step 2: Convert to fraction form
   144,784.77/217,620 = 141,684.09/x
3. Step 3: Cross multiply
   144,784.77x = 217,620 × 141,684.09
4. Step 4: Simplify right side
   144,784.77x = 30,833,291,665.80
5. Step 5: Solve for x
   x = 30,833,291,665.80/144,784.77
6. Step 6: Final answer
   x = 212,959.50