Finding the Fourth Proportional to 101,003.36, 139,385.61 and 55,683.15

Step by Step Solution

1. Step 1: Write the proportion equation
   101,003.36 : 139,385.61 = 55,683.15 : x
2. Step 2: Convert to fraction form
   101,003.36/139,385.61 = 55,683.15/x
3. Step 3: Cross multiply
   101,003.36x = 139,385.61 × 55,683.15
4. Step 4: Simplify right side
   101,003.36x = 7,761,429,306.78
5. Step 5: Solve for x
   x = 7,761,429,306.78/101,003.36
6. Step 6: Final answer
   x = 76,843.28