Finding the Fourth Proportional to 101,102.52, 139,524.15 and 55,781.10

Step by Step Solution

1. Step 1: Write the proportion equation
   101,102.52 : 139,524.15 = 55,781.10 : x
2. Step 2: Convert to fraction form
   101,102.52/139,524.15 = 55,781.10/x
3. Step 3: Cross multiply
   101,102.52x = 139,524.15 × 55,781.10
4. Step 4: Simplify right side
   101,102.52x = 7,782,810,563.57
5. Step 5: Solve for x
   x = 7,782,810,563.57/101,102.52
6. Step 6: Final answer
   x = 76,979.39