Finding the Fourth Proportional to 101,180.34, 139,633.61 and 55,864.80

Step by Step Solution

1. Step 1: Write the proportion equation
   101,180.34 : 139,633.61 = 55,864.80 : x
2. Step 2: Convert to fraction form
   101,180.34/139,633.61 = 55,864.80/x
3. Step 3: Cross multiply
   101,180.34x = 139,633.61 × 55,864.80
4. Step 4: Simplify right side
   101,180.34x = 7,800,603,416.60
5. Step 5: Solve for x
   x = 7,800,603,416.60/101,180.34
6. Step 6: Final answer
   x = 77,096.04