Finding the Fourth Proportional to 121,764.72, 182,669.76 and 42,929.04

Step by Step Solution

1. Step 1: Write the proportion equation
   121,764.72 : 182,669.76 = 42,929.04 : x
2. Step 2: Convert to fraction form
   121,764.72/182,669.76 = 42,929.04/x
3. Step 3: Cross multiply
   121,764.72x = 182,669.76 × 42,929.04
4. Step 4: Simplify right side
   121,764.72x = 7,841,837,433.83
5. Step 5: Solve for x
   x = 7,841,837,433.83/121,764.72
6. Step 6: Final answer
   x = 64,401.56