Finding the Fourth Proportional to 101,300.36, 139,790.41 and 58,855.55

Step by Step Solution

1. Step 1: Write the proportion equation
   101,300.36 : 139,790.41 = 58,855.55 : x
2. Step 2: Convert to fraction form
   101,300.36/139,790.41 = 58,855.55/x
3. Step 3: Cross multiply
   101,300.36x = 139,790.41 × 58,855.55
4. Step 4: Simplify right side
   101,300.36x = 8,227,440,619.18
5. Step 5: Solve for x
   x = 8,227,440,619.18/101,300.36
6. Step 6: Final answer
   x = 81,218.28