Finding the Fourth Proportional to 65,610.10, 90,585.52 and 50,476.06

Step by Step Solution

1. Step 1: Write the proportion equation
   65,610.10 : 90,585.52 = 50,476.06 : x
2. Step 2: Convert to fraction form
   65,610.10/90,585.52 = 50,476.06/x
3. Step 3: Cross multiply
   65,610.10x = 90,585.52 × 50,476.06
4. Step 4: Simplify right side
   65,610.10x = 4,572,400,142.65
5. Step 5: Solve for x
   x = 4,572,400,142.65/65,610.10
6. Step 6: Final answer
   x = 69,690.49