Finding the Fourth Proportional to 81,617.56, 112,632.24 and 45,807.57

Step by Step Solution

1. Step 1: Write the proportion equation
   81,617.56 : 112,632.24 = 45,807.57 : x
2. Step 2: Convert to fraction form
   81,617.56/112,632.24 = 45,807.57/x
3. Step 3: Cross multiply
   81,617.56x = 112,632.24 × 45,807.57
4. Step 4: Simplify right side
   81,617.56x = 5,159,409,630.83
5. Step 5: Solve for x
   x = 5,159,409,630.83/81,617.56
6. Step 6: Final answer
   x = 63,214.45