Finding the Fourth Proportional to 200,442.59, 276,598.96 and 109,780.50

Step by Step Solution

1. Step 1: Write the proportion equation
   200,442.59 : 276,598.96 = 109,780.50 : x
2. Step 2: Convert to fraction form
   200,442.59/276,598.96 = 109,780.50/x
3. Step 3: Cross multiply
   200,442.59x = 276,598.96 × 109,780.50
4. Step 4: Simplify right side
   200,442.59x = 30,365,172,128.28
5. Step 5: Solve for x
   x = 30,365,172,128.28/200,442.59
6. Step 6: Final answer
   x = 151,490.62