Finding the Fourth Proportional to 45,665.39, 68,387.38 and 31,585.91

Step by Step Solution

1. Step 1: Write the proportion equation
   45,665.39 : 68,387.38 = 31,585.91 : x
2. Step 2: Convert to fraction form
   45,665.39/68,387.38 = 31,585.91/x
3. Step 3: Cross multiply
   45,665.39x = 68,387.38 × 31,585.91
4. Step 4: Simplify right side
   45,665.39x = 2,160,077,208.91
5. Step 5: Solve for x
   x = 2,160,077,208.91/45,665.39
6. Step 6: Final answer
   x = 47,302.28