Finding the Fourth Proportional to 42,889.52, 64,311.78 and 17,924.96

Step by Step Solution

1. Step 1: Write the proportion equation
   42,889.52 : 64,311.78 = 17,924.96 : x
2. Step 2: Convert to fraction form
   42,889.52/64,311.78 = 17,924.96/x
3. Step 3: Cross multiply
   42,889.52x = 64,311.78 × 17,924.96
4. Step 4: Simplify right side
   42,889.52x = 1,152,786,084.03
5. Step 5: Solve for x
   x = 1,152,786,084.03/42,889.52
6. Step 6: Final answer
   x = 26,878.04