Finding the Fourth Proportional to 28,293.71, 42,458.99 and 10,763.69

Step by Step Solution

1. Step 1: Write the proportion equation
   28,293.71 : 42,458.99 = 10,763.69 : x
2. Step 2: Convert to fraction form
   28,293.71/42,458.99 = 10,763.69/x
3. Step 3: Cross multiply
   28,293.71x = 42,458.99 × 10,763.69
4. Step 4: Simplify right side
   28,293.71x = 457,015,139.96
5. Step 5: Solve for x
   x = 457,015,139.96/28,293.71
6. Step 6: Final answer
   x = 16,152.54