Finding the Fourth Proportional to 10,011.20, 15,017.82 and 3,436.53

Step by Step Solution

1. Step 1: Write the proportion equation
   10,011.20 : 15,017.82 = 3,436.53 : x
2. Step 2: Convert to fraction form
   10,011.20/15,017.82 = 3,436.53/x
3. Step 3: Cross multiply
   10,011.20x = 15,017.82 × 3,436.53
4. Step 4: Simplify right side
   10,011.20x = 51,609,119.76
5. Step 5: Solve for x
   x = 51,609,119.76/10,011.20
6. Step 6: Final answer
   x = 5,155.14