Finding the Fourth Proportional to 58,461.45, 80,676.28 and 31,603.72

Step by Step Solution

1. Step 1: Write the proportion equation
   58,461.45 : 80,676.28 = 31,603.72 : x
2. Step 2: Convert to fraction form
   58,461.45/80,676.28 = 31,603.72/x
3. Step 3: Cross multiply
   58,461.45x = 80,676.28 × 31,603.72
4. Step 4: Simplify right side
   58,461.45x = 2,549,670,563.76
5. Step 5: Solve for x
   x = 2,549,670,563.76/58,461.45
6. Step 6: Final answer
   x = 43,612.85