Finding the Fourth Proportional to 66,144.17, 91,280.60 and 35,929.49

Step by Step Solution

1. Step 1: Write the proportion equation
   66,144.17 : 91,280.60 = 35,929.49 : x
2. Step 2: Convert to fraction form
   66,144.17/91,280.60 = 35,929.49/x
3. Step 3: Cross multiply
   66,144.17x = 91,280.60 × 35,929.49
4. Step 4: Simplify right side
   66,144.17x = 3,279,665,038.31
5. Step 5: Solve for x
   x = 3,279,665,038.31/66,144.17
6. Step 6: Final answer
   x = 49,583.58