Finding the Fourth Proportional to 200,439.59, 276,594.82 and 109,777.50

Step by Step Solution

1. Step 1: Write the proportion equation
   200,439.59 : 276,594.82 = 109,777.50 : x
2. Step 2: Convert to fraction form
   200,439.59/276,594.82 = 109,777.50/x
3. Step 3: Cross multiply
   200,439.59x = 276,594.82 × 109,777.50
4. Step 4: Simplify right side
   200,439.59x = 30,363,887,578.11
5. Step 5: Solve for x
   x = 30,363,887,578.11/200,439.59
6. Step 6: Final answer
   x = 151,486.48