Finding the Fourth Proportional to 42,465.78, 58,615.02 and 34,026.80

Step by Step Solution

1. Step 1: Write the proportion equation
   42,465.78 : 58,615.02 = 34,026.80 : x
2. Step 2: Convert to fraction form
   42,465.78/58,615.02 = 34,026.80/x
3. Step 3: Cross multiply
   42,465.78x = 58,615.02 × 34,026.80
4. Step 4: Simplify right side
   42,465.78x = 1,994,481,269.46
5. Step 5: Solve for x
   x = 1,994,481,269.46/42,465.78
6. Step 6: Final answer
   x = 46,966.79