Finding the Fourth Proportional to 79,608.76, 109,875.80 and 45,640.06

Step by Step Solution

1. Step 1: Write the proportion equation
   79,608.76 : 109,875.80 = 45,640.06 : x
2. Step 2: Convert to fraction form
   79,608.76/109,875.80 = 45,640.06/x
3. Step 3: Cross multiply
   79,608.76x = 109,875.80 × 45,640.06
4. Step 4: Simplify right side
   79,608.76x = 5,014,738,104.55
5. Step 5: Solve for x
   x = 5,014,738,104.55/79,608.76
6. Step 6: Final answer
   x = 62,992.29