Finding the Fourth Proportional to 79,975.14, 120,035.28 and 42,566.72

Step by Step Solution

1. Step 1: Write the proportion equation
   79,975.14 : 120,035.28 = 42,566.72 : x
2. Step 2: Convert to fraction form
   79,975.14/120,035.28 = 42,566.72/x
3. Step 3: Cross multiply
   79,975.14x = 120,035.28 × 42,566.72
4. Step 4: Simplify right side
   79,975.14x = 5,109,508,153.88
5. Step 5: Solve for x
   x = 5,109,508,153.88/79,975.14
6. Step 6: Final answer
   x = 63,888.71