Finding the Fourth Proportional to 58,729.86, 81,047.81 and 31,872.60

Step by Step Solution

1. Step 1: Write the proportion equation
   58,729.86 : 81,047.81 = 31,872.60 : x
2. Step 2: Convert to fraction form
   58,729.86/81,047.81 = 31,872.60/x
3. Step 3: Cross multiply
   58,729.86x = 81,047.81 × 31,872.60
4. Step 4: Simplify right side
   58,729.86x = 2,583,204,508.69
5. Step 5: Solve for x
   x = 2,583,204,508.69/58,729.86
6. Step 6: Final answer
   x = 43,984.52