Finding the Fourth Proportional to 47,393.83, 70,783.48 and 42,942.61

Step by Step Solution

1. Step 1: Write the proportion equation
   47,393.83 : 70,783.48 = 42,942.61 : x
2. Step 2: Convert to fraction form
   47,393.83/70,783.48 = 42,942.61/x
3. Step 3: Cross multiply
   47,393.83x = 70,783.48 × 42,942.61
4. Step 4: Simplify right side
   47,393.83x = 3,039,627,172.28
5. Step 5: Solve for x
   x = 3,039,627,172.28/47,393.83
6. Step 6: Final answer
   x = 64,135.51