Finding the Fourth Proportional to 56,086.97, 84,146.83 and 16,645.10

Step by Step Solution

1. Step 1: Write the proportion equation
   56,086.97 : 84,146.83 = 16,645.10 : x
2. Step 2: Convert to fraction form
   56,086.97/84,146.83 = 16,645.10/x
3. Step 3: Cross multiply
   56,086.97x = 84,146.83 × 16,645.10
4. Step 4: Simplify right side
   56,086.97x = 1,400,631,937.69
5. Step 5: Solve for x
   x = 1,400,631,937.69/56,086.97
6. Step 6: Final answer
   x = 24,972.50