Finding the Fourth Proportional to 82,280.10, 123,424.20 and 42,914.10

Step by Step Solution

1. Step 1: Write the proportion equation
   82,280.10 : 123,424.20 = 42,914.10 : x
2. Step 2: Convert to fraction form
   82,280.10/123,424.20 = 42,914.10/x
3. Step 3: Cross multiply
   82,280.10x = 123,424.20 × 42,914.10
4. Step 4: Simplify right side
   82,280.10x = 5,296,638,461.22
5. Step 5: Solve for x
   x = 5,296,638,461.22/82,280.10
6. Step 6: Final answer
   x = 64,373.26