Finding the Fourth Proportional to 65,499.74, 90,389.62 and 35,691.74

Step by Step Solution

1. Step 1: Write the proportion equation
   65,499.74 : 90,389.62 = 35,691.74 : x
2. Step 2: Convert to fraction form
   65,499.74/90,389.62 = 35,691.74/x
3. Step 3: Cross multiply
   65,499.74x = 90,389.62 × 35,691.74
4. Step 4: Simplify right side
   65,499.74x = 3,226,162,815.74
5. Step 5: Solve for x
   x = 3,226,162,815.74/65,499.74
6. Step 6: Final answer
   x = 49,254.59