Finding the Fourth Proportional to 279,890.73, 386,259.71 and 159,052.59

Step by Step Solution

1. Step 1: Write the proportion equation
   279,890.73 : 386,259.71 = 159,052.59 : x
2. Step 2: Convert to fraction form
   279,890.73/386,259.71 = 159,052.59/x
3. Step 3: Cross multiply
   279,890.73x = 386,259.71 × 159,052.59
4. Step 4: Simplify right side
   279,890.73x = 61,435,606,492.89
5. Step 5: Solve for x
   x = 61,435,606,492.89/279,890.73
6. Step 6: Final answer
   x = 219,498.54