Finding the Fourth Proportional to 10,011.57, 15,018.38 and 3,436.91

Step by Step Solution

1. Step 1: Write the proportion equation
   10,011.57 : 15,018.38 = 3,436.91 : x
2. Step 2: Convert to fraction form
   10,011.57/15,018.38 = 3,436.91/x
3. Step 3: Cross multiply
   10,011.57x = 15,018.38 × 3,436.91
4. Step 4: Simplify right side
   10,011.57x = 51,616,753.91
5. Step 5: Solve for x
   x = 51,616,753.91/10,011.57
6. Step 6: Final answer
   x = 5,155.71