Finding the Fourth Proportional to 59,911.31, 89,868.59 and 18,358.31

Step by Step Solution

1. Step 1: Write the proportion equation
   59,911.31 : 89,868.59 = 18,358.31 : x
2. Step 2: Convert to fraction form
   59,911.31/89,868.59 = 18,358.31/x
3. Step 3: Cross multiply
   59,911.31x = 89,868.59 × 18,358.31
4. Step 4: Simplify right side
   59,911.31x = 1,649,835,636.21
5. Step 5: Solve for x
   x = 1,649,835,636.21/59,911.31
6. Step 6: Final answer
   x = 27,537.97