Finding the Fourth Proportional to 59,472, 89,242.56 and 26,640

Step by Step Solution

1. Step 1: Write the proportion equation
   59,472 : 89,242.56 = 26,640 : x
2. Step 2: Convert to fraction form
   59,472/89,242.56 = 26,640/x
3. Step 3: Cross multiply
   59,472x = 89,242.56 × 26,640
4. Step 4: Simplify right side
   59,472x = 2,377,421,798.40
5. Step 5: Solve for x
   x = 2,377,421,798.40/59,472
6. Step 6: Final answer
   x = 39,975.48