Finding the Fourth Proportional to 58,474, 80,694.12 and 31,978

Step by Step Solution

1. Step 1: Write the proportion equation
   58,474 : 80,694.12 = 31,978 : x
2. Step 2: Convert to fraction form
   58,474/80,694.12 = 31,978/x
3. Step 3: Cross multiply
   58,474x = 80,694.12 × 31,978
4. Step 4: Simplify right side
   58,474x = 2,580,436,569.36
5. Step 5: Solve for x
   x = 2,580,436,569.36/58,474
6. Step 6: Final answer
   x = 44,129.64