Finding the Fourth Proportional to 101,118.96, 139,537.89 and 55,797.30

Step by Step Solution

1. Step 1: Write the proportion equation
   101,118.96 : 139,537.89 = 55,797.30 : x
2. Step 2: Convert to fraction form
   101,118.96/139,537.89 = 55,797.30/x
3. Step 3: Cross multiply
   101,118.96x = 139,537.89 × 55,797.30
4. Step 4: Simplify right side
   101,118.96x = 7,785,837,509.70
5. Step 5: Solve for x
   x = 7,785,837,509.70/101,118.96
6. Step 6: Final answer
   x = 76,996.81