Finding the Fourth Proportional to 112,980.06, 169,369.41 and 42,908.58

Step by Step Solution

1. Step 1: Write the proportion equation
   112,980.06 : 169,369.41 = 42,908.58 : x
2. Step 2: Convert to fraction form
   112,980.06/169,369.41 = 42,908.58/x
3. Step 3: Cross multiply
   112,980.06x = 169,369.41 × 42,908.58
4. Step 4: Simplify right side
   112,980.06x = 7,267,400,878.54
5. Step 5: Solve for x
   x = 7,267,400,878.54/112,980.06
6. Step 6: Final answer
   x = 64,324.63