Finding the Fourth Proportional to 83,290.72, 114,934.24 and 46,990.16

Step by Step Solution

1. Step 1: Write the proportion equation
   83,290.72 : 114,934.24 = 46,990.16 : x
2. Step 2: Convert to fraction form
   83,290.72/114,934.24 = 46,990.16/x
3. Step 3: Cross multiply
   83,290.72x = 114,934.24 × 46,990.16
4. Step 4: Simplify right side
   83,290.72x = 5,400,778,327.08
5. Step 5: Solve for x
   x = 5,400,778,327.08/83,290.72
6. Step 6: Final answer
   x = 64,842.50