Finding the Fourth Proportional to 101,121.06, 139,544.88 and 55,797.30

Step by Step Solution

1. Step 1: Write the proportion equation
   101,121.06 : 139,544.88 = 55,797.30 : x
2. Step 2: Convert to fraction form
   101,121.06/139,544.88 = 55,797.30/x
3. Step 3: Cross multiply
   101,121.06x = 139,544.88 × 55,797.30
4. Step 4: Simplify right side
   101,121.06x = 7,786,227,532.82
5. Step 5: Solve for x
   x = 7,786,227,532.82/101,121.06
6. Step 6: Final answer
   x = 76,999.07