Finding the Fourth Proportional to 52,663.31, 79,014.91 and 31,618.04

Step by Step Solution

1. Step 1: Write the proportion equation
   52,663.31 : 79,014.91 = 31,618.04 : x
2. Step 2: Convert to fraction form
   52,663.31/79,014.91 = 31,618.04/x
3. Step 3: Cross multiply
   52,663.31x = 79,014.91 × 31,618.04
4. Step 4: Simplify right side
   52,663.31x = 2,498,296,426.89
5. Step 5: Solve for x
   x = 2,498,296,426.89/52,663.31
6. Step 6: Final answer
   x = 47,439.04