Finding the Fourth Proportional to 113,008.88, 169,416.12 and 42,938.48

Step by Step Solution

1. Step 1: Write the proportion equation
   113,008.88 : 169,416.12 = 42,938.48 : x
2. Step 2: Convert to fraction form
   113,008.88/169,416.12 = 42,938.48/x
3. Step 3: Cross multiply
   113,008.88x = 169,416.12 × 42,938.48
4. Step 4: Simplify right side
   113,008.88x = 7,274,470,680.30
5. Step 5: Solve for x
   x = 7,274,470,680.30/113,008.88
6. Step 6: Final answer
   x = 64,370.79