Finding the Fourth Proportional to 79,192.72, 109,286.64 and 45,658.72

Step by Step Solution

1. Step 1: Write the proportion equation
   79,192.72 : 109,286.64 = 45,658.72 : x
2. Step 2: Convert to fraction form
   79,192.72/109,286.64 = 45,658.72/x
3. Step 3: Cross multiply
   79,192.72x = 109,286.64 × 45,658.72
4. Step 4: Simplify right side
   79,192.72x = 4,989,888,095.50
5. Step 5: Solve for x
   x = 4,989,888,095.50/79,192.72
6. Step 6: Final answer
   x = 63,009.43