Finding the Fourth Proportional to 42,786.54, 64,187.46 and 14,699.34

Step by Step Solution

1. Step 1: Write the proportion equation
   42,786.54 : 64,187.46 = 14,699.34 : x
2. Step 2: Convert to fraction form
   42,786.54/64,187.46 = 14,699.34/x
3. Step 3: Cross multiply
   42,786.54x = 64,187.46 × 14,699.34
4. Step 4: Simplify right side
   42,786.54x = 943,513,298.28
5. Step 5: Solve for x
   x = 943,513,298.28/42,786.54
6. Step 6: Final answer
   x = 22,051.64