Finding the Fourth Proportional to 200,359.21, 276,499.11 and 109,713.73

Step by Step Solution

1. Step 1: Write the proportion equation
   200,359.21 : 276,499.11 = 109,713.73 : x
2. Step 2: Convert to fraction form
   200,359.21/276,499.11 = 109,713.73/x
3. Step 3: Cross multiply
   200,359.21x = 276,499.11 × 109,713.73
4. Step 4: Simplify right side
   200,359.21x = 30,335,748,699.78
5. Step 5: Solve for x
   x = 30,335,748,699.78/200,359.21
6. Step 6: Final answer
   x = 151,406.81