Finding the Fourth Proportional to 58,671.72, 80,964.72 and 31,813.74

Step by Step Solution

1. Step 1: Write the proportion equation
   58,671.72 : 80,964.72 = 31,813.74 : x
2. Step 2: Convert to fraction form
   58,671.72/80,964.72 = 31,813.74/x
3. Step 3: Cross multiply
   58,671.72x = 80,964.72 × 31,813.74
4. Step 4: Simplify right side
   58,671.72x = 2,575,790,551.25
5. Step 5: Solve for x
   x = 2,575,790,551.25/58,671.72
6. Step 6: Final answer
   x = 43,901.74