Finding the Fourth Proportional to 42,756.72, 64,139.34 and 34,933.34

Step by Step Solution

1. Step 1: Write the proportion equation
   42,756.72 : 64,139.34 = 34,933.34 : x
2. Step 2: Convert to fraction form
   42,756.72/64,139.34 = 34,933.34/x
3. Step 3: Cross multiply
   42,756.72x = 64,139.34 × 34,933.34
4. Step 4: Simplify right side
   42,756.72x = 2,240,601,050.90
5. Step 5: Solve for x
   x = 2,240,601,050.90/42,756.72
6. Step 6: Final answer
   x = 52,403.48