Finding the Fourth Proportional to 42,682.52, 64,106.78 and 34,790.82

Step by Step Solution

1. Step 1: Write the proportion equation
   42,682.52 : 64,106.78 = 34,790.82 : x
2. Step 2: Convert to fraction form
   42,682.52/64,106.78 = 34,790.82/x
3. Step 3: Cross multiply
   42,682.52x = 64,106.78 × 34,790.82
4. Step 4: Simplify right side
   42,682.52x = 2,230,327,269.81
5. Step 5: Solve for x
   x = 2,230,327,269.81/42,682.52
6. Step 6: Final answer
   x = 52,253.89