Finding the Fourth Proportional to 51,446.52, 70,901.46 and 42,439.32

Step by Step Solution

1. Step 1: Write the proportion equation
   51,446.52 : 70,901.46 = 42,439.32 : x
2. Step 2: Convert to fraction form
   51,446.52/70,901.46 = 42,439.32/x
3. Step 3: Cross multiply
   51,446.52x = 70,901.46 × 42,439.32
4. Step 4: Simplify right side
   51,446.52x = 3,009,009,749.41
5. Step 5: Solve for x
   x = 3,009,009,749.41/51,446.52
6. Step 6: Final answer
   x = 58,488.11