Finding the Fourth Proportional to 101,306.96, 139,796.60 and 55,984.50

Step by Step Solution

1. Step 1: Write the proportion equation
   101,306.96 : 139,796.60 = 55,984.50 : x
2. Step 2: Convert to fraction form
   101,306.96/139,796.60 = 55,984.50/x
3. Step 3: Cross multiply
   101,306.96x = 139,796.60 × 55,984.50
4. Step 4: Simplify right side
   101,306.96x = 7,826,442,472.78
5. Step 5: Solve for x
   x = 7,826,442,472.78/101,306.96
6. Step 6: Final answer
   x = 77,254.74