Finding the Fourth Proportional to 200,404.89, 300,536.42 and 58,220.58

Step by Step Solution

1. Step 1: Write the proportion equation
   200,404.89 : 300,536.42 = 58,220.58 : x
2. Step 2: Convert to fraction form
   200,404.89/300,536.42 = 58,220.58/x
3. Step 3: Cross multiply
   200,404.89x = 300,536.42 × 58,220.58
4. Step 4: Simplify right side
   200,404.89x = 17,497,404,392.42
5. Step 5: Solve for x
   x = 17,497,404,392.42/200,404.89
6. Step 6: Final answer
   x = 87,310.27