Finding the Fourth Proportional to 65,493.98, 90,381.70 and 35,685.98

Step by Step Solution

1. Step 1: Write the proportion equation
   65,493.98 : 90,381.70 = 35,685.98 : x
2. Step 2: Convert to fraction form
   65,493.98/90,381.70 = 35,685.98/x
3. Step 3: Cross multiply
   65,493.98x = 90,381.70 × 35,685.98
4. Step 4: Simplify right side
   65,493.98x = 3,225,359,878.23
5. Step 5: Solve for x
   x = 3,225,359,878.23/65,493.98
6. Step 6: Final answer
   x = 49,246.66