Finding the Fourth Proportional to 101,185.43, 139,635.15 and 55,863.41

Step by Step Solution

1. Step 1: Write the proportion equation
   101,185.43 : 139,635.15 = 55,863.41 : x
2. Step 2: Convert to fraction form
   101,185.43/139,635.15 = 55,863.41/x
3. Step 3: Cross multiply
   101,185.43x = 139,635.15 × 55,863.41
4. Step 4: Simplify right side
   101,185.43x = 7,800,495,634.86
5. Step 5: Solve for x
   x = 7,800,495,634.86/101,185.43
6. Step 6: Final answer
   x = 77,091.10