Finding the Fourth Proportional to 101,003.48, 139,385.24 and 55,680.42

Step by Step Solution

1. Step 1: Write the proportion equation
   101,003.48 : 139,385.24 = 55,680.42 : x
2. Step 2: Convert to fraction form
   101,003.48/139,385.24 = 55,680.42/x
3. Step 3: Cross multiply
   101,003.48x = 139,385.24 × 55,680.42
4. Step 4: Simplify right side
   101,003.48x = 7,761,028,705.00
5. Step 5: Solve for x
   x = 7,761,028,705.00/101,003.48
6. Step 6: Final answer
   x = 76,839.22