Finding the Fourth Proportional to 200,381.05, 276,551.43 and 115,498.72

Step by Step Solution

1. Step 1: Write the proportion equation
   200,381.05 : 276,551.43 = 115,498.72 : x
2. Step 2: Convert to fraction form
   200,381.05/276,551.43 = 115,498.72/x
3. Step 3: Cross multiply
   200,381.05x = 276,551.43 × 115,498.72
4. Step 4: Simplify right side
   200,381.05x = 31,941,336,179.17
5. Step 5: Solve for x
   x = 31,941,336,179.17/200,381.05
6. Step 6: Final answer
   x = 159,402.98