Finding the Fourth Proportional to 72,929.80, 100,643.94 and 42,708.52

Step by Step Solution

1. Step 1: Write the proportion equation
   72,929.80 : 100,643.94 = 42,708.52 : x
2. Step 2: Convert to fraction form
   72,929.80/100,643.94 = 42,708.52/x
3. Step 3: Cross multiply
   72,929.80x = 100,643.94 × 42,708.52
4. Step 4: Simplify right side
   72,929.80x = 4,298,353,724.37
5. Step 5: Solve for x
   x = 4,298,353,724.37/72,929.80
6. Step 6: Final answer
   x = 58,938.24