Finding the Fourth Proportional to 112,945.52, 169,424.04 and 42,830.64

Step by Step Solution

1. Step 1: Write the proportion equation
   112,945.52 : 169,424.04 = 42,830.64 : x
2. Step 2: Convert to fraction form
   112,945.52/169,424.04 = 42,830.64/x
3. Step 3: Cross multiply
   112,945.52x = 169,424.04 × 42,830.64
4. Step 4: Simplify right side
   112,945.52x = 7,256,540,064.59
5. Step 5: Solve for x
   x = 7,256,540,064.59/112,945.52
6. Step 6: Final answer
   x = 64,248.14