Finding the Fourth Proportional to 144,573.69, 216,743.67 and 60,398.34

Step by Step Solution

1. Step 1: Write the proportion equation
   144,573.69 : 216,743.67 = 60,398.34 : x
2. Step 2: Convert to fraction form
   144,573.69/216,743.67 = 60,398.34/x
3. Step 3: Cross multiply
   144,573.69x = 216,743.67 × 60,398.34
4. Step 4: Simplify right side
   144,573.69x = 13,090,957,873.51
5. Step 5: Solve for x
   x = 13,090,957,873.51/144,573.69
6. Step 6: Final answer
   x = 90,548.69