Finding the Fourth Proportional to 65,528.24, 90,428.76 and 35,720.24

Step by Step Solution

1. Step 1: Write the proportion equation
   65,528.24 : 90,428.76 = 35,720.24 : x
2. Step 2: Convert to fraction form
   65,528.24/90,428.76 = 35,720.24/x
3. Step 3: Cross multiply
   65,528.24x = 90,428.76 × 35,720.24
4. Step 4: Simplify right side
   65,528.24x = 3,230,137,010.10
5. Step 5: Solve for x
   x = 3,230,137,010.10/65,528.24
6. Step 6: Final answer
   x = 49,293.82