Finding the Fourth Proportional to 101,171.88, 139,610.02 and 55,842.59

Step by Step Solution

1. Step 1: Write the proportion equation
   101,171.88 : 139,610.02 = 55,842.59 : x
2. Step 2: Convert to fraction form
   101,171.88/139,610.02 = 55,842.59/x
3. Step 3: Cross multiply
   101,171.88x = 139,610.02 × 55,842.59
4. Step 4: Simplify right side
   101,171.88x = 7,796,185,106.75
5. Step 5: Solve for x
   x = 7,796,185,106.75/101,171.88
6. Step 6: Final answer
   x = 77,058.81