Finding the Fourth Proportional to 42,705.47, 64,066.41 and 14,629.86

Step by Step Solution

1. Step 1: Write the proportion equation
   42,705.47 : 64,066.41 = 14,629.86 : x
2. Step 2: Convert to fraction form
   42,705.47/64,066.41 = 14,629.86/x
3. Step 3: Cross multiply
   42,705.47x = 64,066.41 × 14,629.86
4. Step 4: Simplify right side
   42,705.47x = 937,282,609.00
5. Step 5: Solve for x
   x = 937,282,609.00/42,705.47
6. Step 6: Final answer
   x = 21,947.60