Finding the Fourth Proportional to 42,293.74, 63,440.42 and 10,704.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,293.74 : 63,440.42 = 10,704.10 : x
2. Step 2: Convert to fraction form
   42,293.74/63,440.42 = 10,704.10/x
3. Step 3: Cross multiply
   42,293.74x = 63,440.42 × 10,704.10
4. Step 4: Simplify right side
   42,293.74x = 679,072,599.72
5. Step 5: Solve for x
   x = 679,072,599.72/42,293.74
6. Step 6: Final answer
   x = 16,056.10