Finding the Fourth Proportional to 10,057.32, 15,086.39 and 4,789.62

Step by Step Solution

1. Step 1: Write the proportion equation
   10,057.32 : 15,086.39 = 4,789.62 : x
2. Step 2: Convert to fraction form
   10,057.32/15,086.39 = 4,789.62/x
3. Step 3: Cross multiply
   10,057.32x = 15,086.39 × 4,789.62
4. Step 4: Simplify right side
   10,057.32x = 72,258,051.32
5. Step 5: Solve for x
   x = 72,258,051.32/10,057.32
6. Step 6: Final answer
   x = 7,184.62