Finding the Fourth Proportional to 101,300.62, 139,794.51 and 55,977.34

Step by Step Solution

1. Step 1: Write the proportion equation
   101,300.62 : 139,794.51 = 55,977.34 : x
2. Step 2: Convert to fraction form
   101,300.62/139,794.51 = 55,977.34/x
3. Step 3: Cross multiply
   101,300.62x = 139,794.51 × 55,977.34
4. Step 4: Simplify right side
   101,300.62x = 7,825,324,816.40
5. Step 5: Solve for x
   x = 7,825,324,816.40/101,300.62
6. Step 6: Final answer
   x = 77,248.54