Finding the Fourth Proportional to 66,002.72, 91,082.72 and 35,787.44

Step by Step Solution

1. Step 1: Write the proportion equation
   66,002.72 : 91,082.72 = 35,787.44 : x
2. Step 2: Convert to fraction form
   66,002.72/91,082.72 = 35,787.44/x
3. Step 3: Cross multiply
   66,002.72x = 91,082.72 × 35,787.44
4. Step 4: Simplify right side
   66,002.72x = 3,259,617,377.04
5. Step 5: Solve for x
   x = 3,259,617,377.04/66,002.72
6. Step 6: Final answer
   x = 49,386.11