Finding the Fourth Proportional to 42,870.97, 64,309.52 and 14,790.61

Step by Step Solution

1. Step 1: Write the proportion equation
   42,870.97 : 64,309.52 = 14,790.61 : x
2. Step 2: Convert to fraction form
   42,870.97/64,309.52 = 14,790.61/x
3. Step 3: Cross multiply
   42,870.97x = 64,309.52 × 14,790.61
4. Step 4: Simplify right side
   42,870.97x = 951,177,029.61
5. Step 5: Solve for x
   x = 951,177,029.61/42,870.97
6. Step 6: Final answer
   x = 22,186.97