Finding the Fourth Proportional to 42,498.05, 63,745.76 and 10,906.83

Step by Step Solution

1. Step 1: Write the proportion equation
   42,498.05 : 63,745.76 = 10,906.83 : x
2. Step 2: Convert to fraction form
   42,498.05/63,745.76 = 10,906.83/x
3. Step 3: Cross multiply
   42,498.05x = 63,745.76 × 10,906.83
4. Step 4: Simplify right side
   42,498.05x = 695,264,194.81
5. Step 5: Solve for x
   x = 695,264,194.81/42,498.05
6. Step 6: Final answer
   x = 16,359.91