Finding the Fourth Proportional to 61,241.40, 91,806.72 and 42,530.23

Step by Step Solution

1. Step 1: Write the proportion equation
   61,241.40 : 91,806.72 = 42,530.23 : x
2. Step 2: Convert to fraction form
   61,241.40/91,806.72 = 42,530.23/x
3. Step 3: Cross multiply
   61,241.40x = 91,806.72 × 42,530.23
4. Step 4: Simplify right side
   61,241.40x = 3,904,560,872.42
5. Step 5: Solve for x
   x = 3,904,560,872.42/61,241.40
6. Step 6: Final answer
   x = 63,756.88