Finding the Fourth Proportional to 10,059.87, 15,099.12 and 5,133.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,059.87 : 15,099.12 = 5,133.18 : x
2. Step 2: Convert to fraction form
   10,059.87/15,099.12 = 5,133.18/x
3. Step 3: Cross multiply
   10,059.87x = 15,099.12 × 5,133.18
4. Step 4: Simplify right side
   10,059.87x = 77,506,500.80
5. Step 5: Solve for x
   x = 77,506,500.80/10,059.87
6. Step 6: Final answer
   x = 7,704.52