Finding the Fourth Proportional to 81,647.37, 112,675.47 and 45,840.12

Step by Step Solution

1. Step 1: Write the proportion equation
   81,647.37 : 112,675.47 = 45,840.12 : x
2. Step 2: Convert to fraction form
   81,647.37/112,675.47 = 45,840.12/x
3. Step 3: Cross multiply
   81,647.37x = 112,675.47 × 45,840.12
4. Step 4: Simplify right side
   81,647.37x = 5,165,057,065.86
5. Step 5: Solve for x
   x = 5,165,057,065.86/81,647.37
6. Step 6: Final answer
   x = 63,260.54