Finding the Fourth Proportional to 72,800.72, 109,192.44 and 42,832.88

Step by Step Solution

1. Step 1: Write the proportion equation
   72,800.72 : 109,192.44 = 42,832.88 : x
2. Step 2: Convert to fraction form
   72,800.72/109,192.44 = 42,832.88/x
3. Step 3: Cross multiply
   72,800.72x = 109,192.44 × 42,832.88
4. Step 4: Simplify right side
   72,800.72x = 4,677,026,679.43
5. Step 5: Solve for x
   x = 4,677,026,679.43/72,800.72
6. Step 6: Final answer
   x = 64,244.24