Finding the Fourth Proportional to 81,710.05, 112,747.59 and 45,893.20

Step by Step Solution

1. Step 1: Write the proportion equation
   81,710.05 : 112,747.59 = 45,893.20 : x
2. Step 2: Convert to fraction form
   81,710.05/112,747.59 = 45,893.20/x
3. Step 3: Cross multiply
   81,710.05x = 112,747.59 × 45,893.20
4. Step 4: Simplify right side
   81,710.05x = 5,174,347,697.39
5. Step 5: Solve for x
   x = 5,174,347,697.39/81,710.05
6. Step 6: Final answer
   x = 63,325.72