Finding the Fourth Proportional to 120,900.06, 166,790.27 and 75,499.22

Step by Step Solution

1. Step 1: Write the proportion equation
   120,900.06 : 166,790.27 = 75,499.22 : x
2. Step 2: Convert to fraction form
   120,900.06/166,790.27 = 75,499.22/x
3. Step 3: Cross multiply
   120,900.06x = 166,790.27 × 75,499.22
4. Step 4: Simplify right side
   120,900.06x = 12,592,534,077.14
5. Step 5: Solve for x
   x = 12,592,534,077.14/120,900.06
6. Step 6: Final answer
   x = 104,156.56