Finding the Fourth Proportional to 82,099.74, 123,111.34 and 42,646.26

Step by Step Solution

1. Step 1: Write the proportion equation
   82,099.74 : 123,111.34 = 42,646.26 : x
2. Step 2: Convert to fraction form
   82,099.74/123,111.34 = 42,646.26/x
3. Step 3: Cross multiply
   82,099.74x = 123,111.34 × 42,646.26
4. Step 4: Simplify right side
   82,099.74x = 5,250,238,214.59
5. Step 5: Solve for x
   x = 5,250,238,214.59/82,099.74
6. Step 6: Final answer
   x = 63,949.51