Finding the Fourth Proportional to 82,102.50, 123,115.47 and 42,649.02

Step by Step Solution

1. Step 1: Write the proportion equation
   82,102.50 : 123,115.47 = 42,649.02 : x
2. Step 2: Convert to fraction form
   82,102.50/123,115.47 = 42,649.02/x
3. Step 3: Cross multiply
   82,102.50x = 123,115.47 × 42,649.02
4. Step 4: Simplify right side
   82,102.50x = 5,250,754,142.34
5. Step 5: Solve for x
   x = 5,250,754,142.34/82,102.50
6. Step 6: Final answer
   x = 63,953.65