Finding the Fourth Proportional to 55,356.72, 76,389.96 and 31,480.08

Step by Step Solution

1. Step 1: Write the proportion equation
   55,356.72 : 76,389.96 = 31,480.08 : x
2. Step 2: Convert to fraction form
   55,356.72/76,389.96 = 31,480.08/x
3. Step 3: Cross multiply
   55,356.72x = 76,389.96 × 31,480.08
4. Step 4: Simplify right side
   55,356.72x = 2,404,762,052.00
5. Step 5: Solve for x
   x = 2,404,762,052.00/55,356.72
6. Step 6: Final answer
   x = 43,441.19