Finding the Fourth Proportional to 42,688.10, 64,077.24 and 23,984.12

Step by Step Solution

1. Step 1: Write the proportion equation
   42,688.10 : 64,077.24 = 23,984.12 : x
2. Step 2: Convert to fraction form
   42,688.10/64,077.24 = 23,984.12/x
3. Step 3: Cross multiply
   42,688.10x = 64,077.24 × 23,984.12
4. Step 4: Simplify right side
   42,688.10x = 1,536,836,463.56
5. Step 5: Solve for x
   x = 1,536,836,463.56/42,688.10
6. Step 6: Final answer
   x = 36,001.52