Finding the Fourth Proportional to 81,503.82, 112,475.25 and 45,693.72

Step by Step Solution

1. Step 1: Write the proportion equation
   81,503.82 : 112,475.25 = 45,693.72 : x
2. Step 2: Convert to fraction form
   81,503.82/112,475.25 = 45,693.72/x
3. Step 3: Cross multiply
   81,503.82x = 112,475.25 × 45,693.72
4. Step 4: Simplify right side
   81,503.82x = 5,139,412,580.43
5. Step 5: Solve for x
   x = 5,139,412,580.43/81,503.82
6. Step 6: Final answer
   x = 63,057.32