Finding the Fourth Proportional to 144,407.00, 216,647.56 and 60,139.16

Step by Step Solution

1. Step 1: Write the proportion equation
   144,407.00 : 216,647.56 = 60,139.16 : x
2. Step 2: Convert to fraction form
   144,407.00/216,647.56 = 60,139.16/x
3. Step 3: Cross multiply
   144,407.00x = 216,647.56 × 60,139.16
4. Step 4: Simplify right side
   144,407.00x = 13,029,002,078.81
5. Step 5: Solve for x
   x = 13,029,002,078.81/144,407.00
6. Step 6: Final answer
   x = 90,224.17