Finding the Fourth Proportional to 81,906.10, 113,065.29 and 55,064.18

Step by Step Solution

1. Step 1: Write the proportion equation
   81,906.10 : 113,065.29 = 55,064.18 : x
2. Step 2: Convert to fraction form
   81,906.10/113,065.29 = 55,064.18/x
3. Step 3: Cross multiply
   81,906.10x = 113,065.29 × 55,064.18
4. Step 4: Simplify right side
   81,906.10x = 6,225,847,300.89
5. Step 5: Solve for x
   x = 6,225,847,300.89/81,906.10
6. Step 6: Final answer
   x = 76,012.01