Finding the Fourth Proportional to 105,005.01, 157,598.54 and 55,120.35

Step by Step Solution

1. Step 1: Write the proportion equation
   105,005.01 : 157,598.54 = 55,120.35 : x
2. Step 2: Convert to fraction form
   105,005.01/157,598.54 = 55,120.35/x
3. Step 3: Cross multiply
   105,005.01x = 157,598.54 × 55,120.35
4. Step 4: Simplify right side
   105,005.01x = 8,686,886,408.69
5. Step 5: Solve for x
   x = 8,686,886,408.69/105,005.01
6. Step 6: Final answer
   x = 82,728.30