Finding the Fourth Proportional to 101,300.73, 139,795.46 and 55,361.30

Step by Step Solution

1. Step 1: Write the proportion equation
   101,300.73 : 139,795.46 = 55,361.30 : x
2. Step 2: Convert to fraction form
   101,300.73/139,795.46 = 55,361.30/x
3. Step 3: Cross multiply
   101,300.73x = 139,795.46 × 55,361.30
4. Step 4: Simplify right side
   101,300.73x = 7,739,257,423.91
5. Step 5: Solve for x
   x = 7,739,257,423.91/101,300.73
6. Step 6: Final answer
   x = 76,398.83