Finding the Fourth Proportional to 28,483.46, 42,746.55 and 10,731.63

Step by Step Solution

1. Step 1: Write the proportion equation
   28,483.46 : 42,746.55 = 10,731.63 : x
2. Step 2: Convert to fraction form
   28,483.46/42,746.55 = 10,731.63/x
3. Step 3: Cross multiply
   28,483.46x = 42,746.55 × 10,731.63
4. Step 4: Simplify right side
   28,483.46x = 458,740,158.38
5. Step 5: Solve for x
   x = 458,740,158.38/28,483.46
6. Step 6: Final answer
   x = 16,105.49