Finding the Fourth Proportional to 101,040.13, 139,436.04 and 55,719.82

Step by Step Solution

1. Step 1: Write the proportion equation
   101,040.13 : 139,436.04 = 55,719.82 : x
2. Step 2: Convert to fraction form
   101,040.13/139,436.04 = 55,719.82/x
3. Step 3: Cross multiply
   101,040.13x = 139,436.04 × 55,719.82
4. Step 4: Simplify right side
   101,040.13x = 7,769,351,050.31
5. Step 5: Solve for x
   x = 7,769,351,050.31/101,040.13
6. Step 6: Final answer
   x = 76,893.72