Finding the Fourth Proportional to 200,302.72, 300,434.56 and 52,558.72

Step by Step Solution

1. Step 1: Write the proportion equation
   200,302.72 : 300,434.56 = 52,558.72 : x
2. Step 2: Convert to fraction form
   200,302.72/300,434.56 = 52,558.72/x
3. Step 3: Cross multiply
   200,302.72x = 300,434.56 × 52,558.72
4. Step 4: Simplify right side
   200,302.72x = 15,790,455,917.36
5. Step 5: Solve for x
   x = 15,790,455,917.36/200,302.72
6. Step 6: Final answer
   x = 78,832.96