Finding the Fourth Proportional to 49,301.72, 68,086.08 and 31,404.74

Step by Step Solution

1. Step 1: Write the proportion equation
   49,301.72 : 68,086.08 = 31,404.74 : x
2. Step 2: Convert to fraction form
   49,301.72/68,086.08 = 31,404.74/x
3. Step 3: Cross multiply
   49,301.72x = 68,086.08 × 31,404.74
4. Step 4: Simplify right side
   49,301.72x = 2,138,225,640.02
5. Step 5: Solve for x
   x = 2,138,225,640.02/49,301.72
6. Step 6: Final answer
   x = 43,370.20