Finding the Fourth Proportional to 101,043.13, 139,440.18 and 55,722.82

Step by Step Solution

1. Step 1: Write the proportion equation
   101,043.13 : 139,440.18 = 55,722.82 : x
2. Step 2: Convert to fraction form
   101,043.13/139,440.18 = 55,722.82/x
3. Step 3: Cross multiply
   101,043.13x = 139,440.18 × 55,722.82
4. Step 4: Simplify right side
   101,043.13x = 7,770,000,050.91
5. Step 5: Solve for x
   x = 7,770,000,050.91/101,043.13
6. Step 6: Final answer
   x = 76,897.86