Finding the Fourth Proportional to 10,089.59, 15,128.69 and 4,825.87

Step by Step Solution

1. Step 1: Write the proportion equation
   10,089.59 : 15,128.69 = 4,825.87 : x
2. Step 2: Convert to fraction form
   10,089.59/15,128.69 = 4,825.87/x
3. Step 3: Cross multiply
   10,089.59x = 15,128.69 × 4,825.87
4. Step 4: Simplify right side
   10,089.59x = 73,009,014.77
5. Step 5: Solve for x
   x = 73,009,014.77/10,089.59
6. Step 6: Final answer
   x = 7,236.08