Finding the Fourth Proportional to 52,131.98, 78,302.70 and 31,113.09

Step by Step Solution

1. Step 1: Write the proportion equation
   52,131.98 : 78,302.70 = 31,113.09 : x
2. Step 2: Convert to fraction form
   52,131.98/78,302.70 = 31,113.09/x
3. Step 3: Cross multiply
   52,131.98x = 78,302.70 × 31,113.09
4. Step 4: Simplify right side
   52,131.98x = 2,436,238,952.34
5. Step 5: Solve for x
   x = 2,436,238,952.34/52,131.98
6. Step 6: Final answer
   x = 46,732.14