Finding the Fourth Proportional to 61,422.93, 91,949.82 and 55,006.80

Step by Step Solution

1. Step 1: Write the proportion equation
   61,422.93 : 91,949.82 = 55,006.80 : x
2. Step 2: Convert to fraction form
   61,422.93/91,949.82 = 55,006.80/x
3. Step 3: Cross multiply
   61,422.93x = 91,949.82 × 55,006.80
4. Step 4: Simplify right side
   61,422.93x = 5,057,865,358.78
5. Step 5: Solve for x
   x = 5,057,865,358.78/61,422.93
6. Step 6: Final answer
   x = 82,344.91