Finding the Fourth Proportional to 101,131.83, 139,559.36 and 55,809.23

Step by Step Solution

1. Step 1: Write the proportion equation
   101,131.83 : 139,559.36 = 55,809.23 : x
2. Step 2: Convert to fraction form
   101,131.83/139,559.36 = 55,809.23/x
3. Step 3: Cross multiply
   101,131.83x = 139,559.36 × 55,809.23
4. Step 4: Simplify right side
   101,131.83x = 7,788,699,444.05
5. Step 5: Solve for x
   x = 7,788,699,444.05/101,131.83
6. Step 6: Final answer
   x = 77,015.31