Finding the Fourth Proportional to 101,086.85, 139,499.85 and 55,764.94

Step by Step Solution

1. Step 1: Write the proportion equation
   101,086.85 : 139,499.85 = 55,764.94 : x
2. Step 2: Convert to fraction form
   101,086.85/139,499.85 = 55,764.94/x
3. Step 3: Cross multiply
   101,086.85x = 139,499.85 × 55,764.94
4. Step 4: Simplify right side
   101,086.85x = 7,779,200,765.26
5. Step 5: Solve for x
   x = 7,779,200,765.26/101,086.85
6. Step 6: Final answer
   x = 76,955.62