Finding the Fourth Proportional to 82,699.84, 123,993.62 and 42,073.50

Step by Step Solution

1. Step 1: Write the proportion equation
   82,699.84 : 123,993.62 = 42,073.50 : x
2. Step 2: Convert to fraction form
   82,699.84/123,993.62 = 42,073.50/x
3. Step 3: Cross multiply
   82,699.84x = 123,993.62 × 42,073.50
4. Step 4: Simplify right side
   82,699.84x = 5,216,845,360.70
5. Step 5: Solve for x
   x = 5,216,845,360.70/82,699.84
6. Step 6: Final answer
   x = 63,081.69