Finding the Fourth Proportional to 120,300.39, 166,089.83 and 77,297.22

Step by Step Solution

1. Step 1: Write the proportion equation
   120,300.39 : 166,089.83 = 77,297.22 : x
2. Step 2: Convert to fraction form
   120,300.39/166,089.83 = 77,297.22/x
3. Step 3: Cross multiply
   120,300.39x = 166,089.83 × 77,297.22
4. Step 4: Simplify right side
   120,300.39x = 12,838,281,742.79
5. Step 5: Solve for x
   x = 12,838,281,742.79/120,300.39
6. Step 6: Final answer
   x = 106,718.54