Finding the Fourth Proportional to 123,017.21, 169,776.29 and 75,302.09

Step by Step Solution

1. Step 1: Write the proportion equation
   123,017.21 : 169,776.29 = 75,302.09 : x
2. Step 2: Convert to fraction form
   123,017.21/169,776.29 = 75,302.09/x
3. Step 3: Cross multiply
   123,017.21x = 169,776.29 × 75,302.09
4. Step 4: Simplify right side
   123,017.21x = 12,784,509,045.01
5. Step 5: Solve for x
   x = 12,784,509,045.01/123,017.21
6. Step 6: Final answer
   x = 103,924.56