Finding the Fourth Proportional to 144,673.02, 216,938.52 and 60,407.91

Step by Step Solution

1. Step 1: Write the proportion equation
   144,673.02 : 216,938.52 = 60,407.91 : x
2. Step 2: Convert to fraction form
   144,673.02/216,938.52 = 60,407.91/x
3. Step 3: Cross multiply
   144,673.02x = 216,938.52 × 60,407.91
4. Step 4: Simplify right side
   144,673.02x = 13,104,802,591.69
5. Step 5: Solve for x
   x = 13,104,802,591.69/144,673.02
6. Step 6: Final answer
   x = 90,582.21