Finding the Fourth Proportional to 49,547.64, 68,386.56 and 31,386.62

Step by Step Solution

1. Step 1: Write the proportion equation
   49,547.64 : 68,386.56 = 31,386.62 : x
2. Step 2: Convert to fraction form
   49,547.64/68,386.56 = 31,386.62/x
3. Step 3: Cross multiply
   49,547.64x = 68,386.56 × 31,386.62
4. Step 4: Simplify right side
   49,547.64x = 2,146,422,971.83
5. Step 5: Solve for x
   x = 2,146,422,971.83/49,547.64
6. Step 6: Final answer
   x = 43,320.39