Finding the Fourth Proportional to 101,065.58, 139,471.56 and 55,745.48

Step by Step Solution

1. Step 1: Write the proportion equation
   101,065.58 : 139,471.56 = 55,745.48 : x
2. Step 2: Convert to fraction form
   101,065.58/139,471.56 = 55,745.48/x
3. Step 3: Cross multiply
   101,065.58x = 139,471.56 × 55,745.48
4. Step 4: Simplify right side
   101,065.58x = 7,774,909,058.55
5. Step 5: Solve for x
   x = 7,774,909,058.55/101,065.58
6. Step 6: Final answer
   x = 76,929.35