Finding the Fourth Proportional to 122,308.30, 168,803.91 and 74,589.33

Step by Step Solution

1. Step 1: Write the proportion equation
   122,308.30 : 168,803.91 = 74,589.33 : x
2. Step 2: Convert to fraction form
   122,308.30/168,803.91 = 74,589.33/x
3. Step 3: Cross multiply
   122,308.30x = 168,803.91 × 74,589.33
4. Step 4: Simplify right side
   122,308.30x = 12,590,970,126.27
5. Step 5: Solve for x
   x = 12,590,970,126.27/122,308.30
6. Step 6: Final answer
   x = 102,944.53