Finding the Fourth Proportional to 42,976.48, 64,487.40 and 23,251.36

Step by Step Solution

1. Step 1: Write the proportion equation
   42,976.48 : 64,487.40 = 23,251.36 : x
2. Step 2: Convert to fraction form
   42,976.48/64,487.40 = 23,251.36/x
3. Step 3: Cross multiply
   42,976.48x = 64,487.40 × 23,251.36
4. Step 4: Simplify right side
   42,976.48x = 1,499,419,752.86
5. Step 5: Solve for x
   x = 1,499,419,752.86/42,976.48
6. Step 6: Final answer
   x = 34,889.31