Finding the Fourth Proportional to 123,111.04, 169,972.30 and 77,233.58

Step by Step Solution

1. Step 1: Write the proportion equation
   123,111.04 : 169,972.30 = 77,233.58 : x
2. Step 2: Convert to fraction form
   123,111.04/169,972.30 = 77,233.58/x
3. Step 3: Cross multiply
   123,111.04x = 169,972.30 × 77,233.58
4. Step 4: Simplify right side
   123,111.04x = 13,127,568,186.89
5. Step 5: Solve for x
   x = 13,127,568,186.89/123,111.04
6. Step 6: Final answer
   x = 106,631.94