Finding the Fourth Proportional to 42,715.56, 64,004.12 and 26,024.96

Step by Step Solution

1. Step 1: Write the proportion equation
   42,715.56 : 64,004.12 = 26,024.96 : x
2. Step 2: Convert to fraction form
   42,715.56/64,004.12 = 26,024.96/x
3. Step 3: Cross multiply
   42,715.56x = 64,004.12 × 26,024.96
4. Step 4: Simplify right side
   42,715.56x = 1,665,704,662.84
5. Step 5: Solve for x
   x = 1,665,704,662.84/42,715.56
6. Step 6: Final answer
   x = 38,995.27