Finding the Fourth Proportional to 101,208.83, 139,667.28 and 55,885.84

Step by Step Solution

1. Step 1: Write the proportion equation
   101,208.83 : 139,667.28 = 55,885.84 : x
2. Step 2: Convert to fraction form
   101,208.83/139,667.28 = 55,885.84/x
3. Step 3: Cross multiply
   101,208.83x = 139,667.28 × 55,885.84
4. Step 4: Simplify right side
   101,208.83x = 7,805,422,914.15
5. Step 5: Solve for x
   x = 7,805,422,914.15/101,208.83
6. Step 6: Final answer
   x = 77,121.95