Finding the Fourth Proportional to 123,167.21, 169,956.30 and 69,449.02

Step by Step Solution

1. Step 1: Write the proportion equation
   123,167.21 : 169,956.30 = 69,449.02 : x
2. Step 2: Convert to fraction form
   123,167.21/169,956.30 = 69,449.02/x
3. Step 3: Cross multiply
   123,167.21x = 169,956.30 × 69,449.02
4. Step 4: Simplify right side
   123,167.21x = 11,803,298,477.83
5. Step 5: Solve for x
   x = 11,803,298,477.83/123,167.21
6. Step 6: Final answer
   x = 95,831.50