Finding the Fourth Proportional to 101,300.73, 139,795.30 and 55,360.92

Step by Step Solution

1. Step 1: Write the proportion equation
   101,300.73 : 139,795.30 = 55,360.92 : x
2. Step 2: Convert to fraction form
   101,300.73/139,795.30 = 55,360.92/x
3. Step 3: Cross multiply
   101,300.73x = 139,795.30 × 55,360.92
4. Step 4: Simplify right side
   101,300.73x = 7,739,196,419.68
5. Step 5: Solve for x
   x = 7,739,196,419.68/101,300.73
6. Step 6: Final answer
   x = 76,398.23