Finding the Fourth Proportional to 144,478.76, 216,727.86 and 55,733

Step by Step Solution

1. Step 1: Write the proportion equation
   144,478.76 : 216,727.86 = 55,733 : x
2. Step 2: Convert to fraction form
   144,478.76/216,727.86 = 55,733/x
3. Step 3: Cross multiply
   144,478.76x = 216,727.86 × 55,733
4. Step 4: Simplify right side
   144,478.76x = 12,078,893,821.38
5. Step 5: Solve for x
   x = 12,078,893,821.38/144,478.76
6. Step 6: Final answer
   x = 83,603.25