Finding the Fourth Proportional to 200,089.73, 276,113.52 and 109,428.05

Step by Step Solution

1. Step 1: Write the proportion equation
   200,089.73 : 276,113.52 = 109,428.05 : x
2. Step 2: Convert to fraction form
   200,089.73/276,113.52 = 109,428.05/x
3. Step 3: Cross multiply
   200,089.73x = 276,113.52 × 109,428.05
4. Step 4: Simplify right side
   200,089.73x = 30,214,562,691.67
5. Step 5: Solve for x
   x = 30,214,562,691.67/200,089.73
6. Step 6: Final answer
   x = 151,005.07