Finding the Fourth Proportional to 79,002.06, 118,503.22 and 31,638.48

Step by Step Solution

1. Step 1: Write the proportion equation
   79,002.06 : 118,503.22 = 31,638.48 : x
2. Step 2: Convert to fraction form
   79,002.06/118,503.22 = 31,638.48/x
3. Step 3: Cross multiply
   79,002.06x = 118,503.22 × 31,638.48
4. Step 4: Simplify right side
   79,002.06x = 3,749,261,755.91
5. Step 5: Solve for x
   x = 3,749,261,755.91/79,002.06
6. Step 6: Final answer
   x = 47,457.77