Finding the Fourth Proportional to 144,667.84, 216,930.60 and 60,402.70

Step by Step Solution

1. Step 1: Write the proportion equation
   144,667.84 : 216,930.60 = 60,402.70 : x
2. Step 2: Convert to fraction form
   144,667.84/216,930.60 = 60,402.70/x
3. Step 3: Cross multiply
   144,667.84x = 216,930.60 × 60,402.70
4. Step 4: Simplify right side
   144,667.84x = 13,103,193,952.62
5. Step 5: Solve for x
   x = 13,103,193,952.62/144,667.84
6. Step 6: Final answer
   x = 90,574.34