Finding the Fourth Proportional to 144,495.62, 216,602.49 and 60,279.98

Step by Step Solution

1. Step 1: Write the proportion equation
   144,495.62 : 216,602.49 = 60,279.98 : x
2. Step 2: Convert to fraction form
   144,495.62/216,602.49 = 60,279.98/x
3. Step 3: Cross multiply
   144,495.62x = 216,602.49 × 60,279.98
4. Step 4: Simplify right side
   144,495.62x = 13,056,793,765.15
5. Step 5: Solve for x
   x = 13,056,793,765.15/144,495.62
6. Step 6: Final answer
   x = 90,361.17