Finding the Fourth Proportional to 79,002.56, 118,503.96 and 31,638.98

Step by Step Solution

1. Step 1: Write the proportion equation
   79,002.56 : 118,503.96 = 31,638.98 : x
2. Step 2: Convert to fraction form
   79,002.56/118,503.96 = 31,638.98/x
3. Step 3: Cross multiply
   79,002.56x = 118,503.96 × 31,638.98
4. Step 4: Simplify right side
   79,002.56x = 3,749,344,420.36
5. Step 5: Solve for x
   x = 3,749,344,420.36/79,002.56
6. Step 6: Final answer
   x = 47,458.52