Finding the Fourth Proportional to 51,005.50, 70,395.95 and 42,494.13

Step by Step Solution

1. Step 1: Write the proportion equation
   51,005.50 : 70,395.95 = 42,494.13 : x
2. Step 2: Convert to fraction form
   51,005.50/70,395.95 = 42,494.13/x
3. Step 3: Cross multiply
   51,005.50x = 70,395.95 × 42,494.13
4. Step 4: Simplify right side
   51,005.50x = 2,991,414,757.01
5. Step 5: Solve for x
   x = 2,991,414,757.01/51,005.50
6. Step 6: Final answer
   x = 58,648.87