Finding the Fourth Proportional to 42,934.59, 64,422.54 and 22,158.09

Step by Step Solution

1. Step 1: Write the proportion equation
   42,934.59 : 64,422.54 = 22,158.09 : x
2. Step 2: Convert to fraction form
   42,934.59/64,422.54 = 22,158.09/x
3. Step 3: Cross multiply
   42,934.59x = 64,422.54 × 22,158.09
4. Step 4: Simplify right side
   42,934.59x = 1,427,480,439.35
5. Step 5: Solve for x
   x = 1,427,480,439.35/42,934.59
6. Step 6: Final answer
   x = 33,247.79