Finding the Fourth Proportional to 81,510.72, 122,266.49 and 37,106.42

Step by Step Solution

1. Step 1: Write the proportion equation
   81,510.72 : 122,266.49 = 37,106.42 : x
2. Step 2: Convert to fraction form
   81,510.72/122,266.49 = 37,106.42/x
3. Step 3: Cross multiply
   81,510.72x = 122,266.49 × 37,106.42
4. Step 4: Simplify right side
   81,510.72x = 4,536,870,933.00
5. Step 5: Solve for x
   x = 4,536,870,933.00/81,510.72
6. Step 6: Final answer
   x = 55,659.81