Finding the Fourth Proportional to 81,469.31, 112,427.39 and 47,497.91

Step by Step Solution

1. Step 1: Write the proportion equation
   81,469.31 : 112,427.39 = 47,497.91 : x
2. Step 2: Convert to fraction form
   81,469.31/112,427.39 = 47,497.91/x
3. Step 3: Cross multiply
   81,469.31x = 112,427.39 × 47,497.91
4. Step 4: Simplify right side
   81,469.31x = 5,340,066,095.33
5. Step 5: Solve for x
   x = 5,340,066,095.33/81,469.31
6. Step 6: Final answer
   x = 65,546.96