Finding the Fourth Proportional to 66,075.72, 91,185.15 and 35,861.30

Step by Step Solution

1. Step 1: Write the proportion equation
   66,075.72 : 91,185.15 = 35,861.30 : x
2. Step 2: Convert to fraction form
   66,075.72/91,185.15 = 35,861.30/x
3. Step 3: Cross multiply
   66,075.72x = 91,185.15 × 35,861.30
4. Step 4: Simplify right side
   66,075.72x = 3,270,017,563.77
5. Step 5: Solve for x
   x = 3,270,017,563.77/66,075.72
6. Step 6: Final answer
   x = 49,488.94