Finding the Fourth Proportional to 91,645.97, 137,490.46 and 28,462.82

Step by Step Solution

1. Step 1: Write the proportion equation
   91,645.97 : 137,490.46 = 28,462.82 : x
2. Step 2: Convert to fraction form
   91,645.97/137,490.46 = 28,462.82/x
3. Step 3: Cross multiply
   91,645.97x = 137,490.46 × 28,462.82
4. Step 4: Simplify right side
   91,645.97x = 3,913,365,456.09
5. Step 5: Solve for x
   x = 3,913,365,456.09/91,645.97
6. Step 6: Final answer
   x = 42,700.90