Finding the Fourth Proportional to 101,100.48, 139,519.14 and 55,779

Step by Step Solution

1. Step 1: Write the proportion equation
   101,100.48 : 139,519.14 = 55,779 : x
2. Step 2: Convert to fraction form
   101,100.48/139,519.14 = 55,779/x
3. Step 3: Cross multiply
   101,100.48x = 139,519.14 × 55,779
4. Step 4: Simplify right side
   101,100.48x = 7,782,238,110.06
5. Step 5: Solve for x
   x = 7,782,238,110.06/101,100.48
6. Step 6: Final answer
   x = 76,975.28