Finding the Fourth Proportional to 101,196.66, 139,644.18 and 55,867.32

Step by Step Solution

1. Step 1: Write the proportion equation
   101,196.66 : 139,644.18 = 55,867.32 : x
2. Step 2: Convert to fraction form
   101,196.66/139,644.18 = 55,867.32/x
3. Step 3: Cross multiply
   101,196.66x = 139,644.18 × 55,867.32
4. Step 4: Simplify right side
   101,196.66x = 7,801,546,090.20
5. Step 5: Solve for x
   x = 7,801,546,090.20/101,196.66
6. Step 6: Final answer
   x = 77,092.92