Finding the Fourth Proportional to 81,513.45, 112,493.21 and 45,701.73

Step by Step Solution

1. Step 1: Write the proportion equation
   81,513.45 : 112,493.21 = 45,701.73 : x
2. Step 2: Convert to fraction form
   81,513.45/112,493.21 = 45,701.73/x
3. Step 3: Cross multiply
   81,513.45x = 112,493.21 × 45,701.73
4. Step 4: Simplify right side
   81,513.45x = 5,141,134,081.74
5. Step 5: Solve for x
   x = 5,141,134,081.74/81,513.45
6. Step 6: Final answer
   x = 63,070.99