Finding the Fourth Proportional to 279,959.59, 419,690.72 and 109,141.93

Step by Step Solution

1. Step 1: Write the proportion equation
   279,959.59 : 419,690.72 = 109,141.93 : x
2. Step 2: Convert to fraction form
   279,959.59/419,690.72 = 109,141.93/x
3. Step 3: Cross multiply
   279,959.59x = 419,690.72 × 109,141.93
4. Step 4: Simplify right side
   279,959.59x = 45,805,854,638.18
5. Step 5: Solve for x
   x = 45,805,854,638.18/279,959.59
6. Step 6: Final answer
   x = 163,615.95