Finding the Fourth Proportional to 52,870, 72,960.60 and 29,318

Step by Step Solution

1. Step 1: Write the proportion equation
   52,870 : 72,960.60 = 29,318 : x
2. Step 2: Convert to fraction form
   52,870/72,960.60 = 29,318/x
3. Step 3: Cross multiply
   52,870x = 72,960.60 × 29,318
4. Step 4: Simplify right side
   52,870x = 2,139,058,870.80
5. Step 5: Solve for x
   x = 2,139,058,870.80/52,870
6. Step 6: Final answer
   x = 40,458.84