Finding the Fourth Proportional to 81,906.55, 113,065.91 and 55,064.63

Step by Step Solution

1. Step 1: Write the proportion equation
   81,906.55 : 113,065.91 = 55,064.63 : x
2. Step 2: Convert to fraction form
   81,906.55/113,065.91 = 55,064.63/x
3. Step 3: Cross multiply
   81,906.55x = 113,065.91 × 55,064.63
4. Step 4: Simplify right side
   81,906.55x = 6,225,932,499.76
5. Step 5: Solve for x
   x = 6,225,932,499.76/81,906.55
6. Step 6: Final answer
   x = 76,012.63