Finding the Fourth Proportional to 47,062.11, 64,922.92 and 31,159.89

Step by Step Solution

1. Step 1: Write the proportion equation
   47,062.11 : 64,922.92 = 31,159.89 : x
2. Step 2: Convert to fraction form
   47,062.11/64,922.92 = 31,159.89/x
3. Step 3: Cross multiply
   47,062.11x = 64,922.92 × 31,159.89
4. Step 4: Simplify right side
   47,062.11x = 2,022,990,967.78
5. Step 5: Solve for x
   x = 2,022,990,967.78/47,062.11
6. Step 6: Final answer
   x = 42,985.55