Finding the Fourth Proportional to 42,922.42, 64,373.79 and 11,760.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,922.42 : 64,373.79 = 11,760.10 : x
2. Step 2: Convert to fraction form
   42,922.42/64,373.79 = 11,760.10/x
3. Step 3: Cross multiply
   42,922.42x = 64,373.79 × 11,760.10
4. Step 4: Simplify right side
   42,922.42x = 757,042,207.78
5. Step 5: Solve for x
   x = 757,042,207.78/42,922.42
6. Step 6: Final answer
   x = 17,637.45