Finding the Fourth Proportional to 53,379, 73,667.40 and 31,027.32

Step by Step Solution

1. Step 1: Write the proportion equation
   53,379 : 73,667.40 = 31,027.32 : x
2. Step 2: Convert to fraction form
   53,379/73,667.40 = 31,027.32/x
3. Step 3: Cross multiply
   53,379x = 73,667.40 × 31,027.32
4. Step 4: Simplify right side
   53,379x = 2,285,701,993.37
5. Step 5: Solve for x
   x = 2,285,701,993.37/53,379
6. Step 6: Final answer
   x = 42,820.25