Finding the Fourth Proportional to 200,406.39, 300,538.67 and 58,222.08

Step by Step Solution

1. Step 1: Write the proportion equation
   200,406.39 : 300,538.67 = 58,222.08 : x
2. Step 2: Convert to fraction form
   200,406.39/300,538.67 = 58,222.08/x
3. Step 3: Cross multiply
   200,406.39x = 300,538.67 × 58,222.08
4. Step 4: Simplify right side
   200,406.39x = 17,497,986,196.72
5. Step 5: Solve for x
   x = 17,497,986,196.72/200,406.39
6. Step 6: Final answer
   x = 87,312.52