Finding the Fourth Proportional to 42,744.76, 64,131.72 and 23,025.31

Step by Step Solution

1. Step 1: Write the proportion equation
   42,744.76 : 64,131.72 = 23,025.31 : x
2. Step 2: Convert to fraction form
   42,744.76/64,131.72 = 23,025.31/x
3. Step 3: Cross multiply
   42,744.76x = 64,131.72 × 23,025.31
4. Step 4: Simplify right side
   42,744.76x = 1,476,652,733.83
5. Step 5: Solve for x
   x = 1,476,652,733.83/42,744.76
6. Step 6: Final answer
   x = 34,545.82