Finding the Fourth Proportional to 81,725, 112,781.98 and 45,429.84

Step by Step Solution

1. Step 1: Write the proportion equation
   81,725 : 112,781.98 = 45,429.84 : x
2. Step 2: Convert to fraction form
   81,725/112,781.98 = 45,429.84/x
3. Step 3: Cross multiply
   81,725x = 112,781.98 × 45,429.84
4. Step 4: Simplify right side
   81,725x = 5,123,667,306.28
5. Step 5: Solve for x
   x = 5,123,667,306.28/81,725
6. Step 6: Final answer
   x = 62,694.00