Finding the Fourth Proportional to 42,813.52, 64,225.75 and 16,525.78

Step by Step Solution

1. Step 1: Write the proportion equation
   42,813.52 : 64,225.75 = 16,525.78 : x
2. Step 2: Convert to fraction form
   42,813.52/64,225.75 = 16,525.78/x
3. Step 3: Cross multiply
   42,813.52x = 64,225.75 × 16,525.78
4. Step 4: Simplify right side
   42,813.52x = 1,061,380,614.84
5. Step 5: Solve for x
   x = 1,061,380,614.84/42,813.52
6. Step 6: Final answer
   x = 24,790.78