Finding the Fourth Proportional to 42,688.54, 64,077.90 and 23,984.56

Step by Step Solution

1. Step 1: Write the proportion equation
   42,688.54 : 64,077.90 = 23,984.56 : x
2. Step 2: Convert to fraction form
   42,688.54/64,077.90 = 23,984.56/x
3. Step 3: Cross multiply
   42,688.54x = 64,077.90 × 23,984.56
4. Step 4: Simplify right side
   42,688.54x = 1,536,880,237.22
5. Step 5: Solve for x
   x = 1,536,880,237.22/42,688.54
6. Step 6: Final answer
   x = 36,002.17