Finding the Fourth Proportional to 123,158.27, 169,970.60 and 74,756.39

Step by Step Solution

1. Step 1: Write the proportion equation
   123,158.27 : 169,970.60 = 74,756.39 : x
2. Step 2: Convert to fraction form
   123,158.27/169,970.60 = 74,756.39/x
3. Step 3: Cross multiply
   123,158.27x = 169,970.60 × 74,756.39
4. Step 4: Simplify right side
   123,158.27x = 12,706,387,799.17
5. Step 5: Solve for x
   x = 12,706,387,799.17/123,158.27
6. Step 6: Final answer
   x = 103,171.21