Finding the Fourth Proportional to 65,438.08, 90,196.72 and 46,293.12

Step by Step Solution

1. Step 1: Write the proportion equation
   65,438.08 : 90,196.72 = 46,293.12 : x
2. Step 2: Convert to fraction form
   65,438.08/90,196.72 = 46,293.12/x
3. Step 3: Cross multiply
   65,438.08x = 90,196.72 × 46,293.12
4. Step 4: Simplify right side
   65,438.08x = 4,175,487,582.57
5. Step 5: Solve for x
   x = 4,175,487,582.57/65,438.08
6. Step 6: Final answer
   x = 63,808.22