Finding the Fourth Proportional to 83,061.89, 124,647.86 and 45,648.09

Step by Step Solution

1. Step 1: Write the proportion equation
   83,061.89 : 124,647.86 = 45,648.09 : x
2. Step 2: Convert to fraction form
   83,061.89/124,647.86 = 45,648.09/x
3. Step 3: Cross multiply
   83,061.89x = 124,647.86 × 45,648.09
4. Step 4: Simplify right side
   83,061.89x = 5,689,936,845.71
5. Step 5: Solve for x
   x = 5,689,936,845.71/83,061.89
6. Step 6: Final answer
   x = 68,502.38