Finding the Fourth Proportional to 65,499.19, 90,388.89 and 35,691.19

Step by Step Solution

1. Step 1: Write the proportion equation
   65,499.19 : 90,388.89 = 35,691.19 : x
2. Step 2: Convert to fraction form
   65,499.19/90,388.89 = 35,691.19/x
3. Step 3: Cross multiply
   65,499.19x = 90,388.89 × 35,691.19
4. Step 4: Simplify right side
   65,499.19x = 3,226,086,820.91
5. Step 5: Solve for x
   x = 3,226,086,820.91/65,499.19
6. Step 6: Final answer
   x = 49,253.84