Finding the Fourth Proportional to 112,980.02, 169,469.96 and 42,859.33

Step by Step Solution

1. Step 1: Write the proportion equation
   112,980.02 : 169,469.96 = 42,859.33 : x
2. Step 2: Convert to fraction form
   112,980.02/169,469.96 = 42,859.33/x
3. Step 3: Cross multiply
   112,980.02x = 169,469.96 × 42,859.33
4. Step 4: Simplify right side
   112,980.02x = 7,263,368,302.76
5. Step 5: Solve for x
   x = 7,263,368,302.76/112,980.02
6. Step 6: Final answer
   x = 64,288.97