Finding the Fourth Proportional to 42,820.78, 59,042.34 and 34,316.08

Step by Step Solution

1. Step 1: Write the proportion equation
   42,820.78 : 59,042.34 = 34,316.08 : x
2. Step 2: Convert to fraction form
   42,820.78/59,042.34 = 34,316.08/x
3. Step 3: Cross multiply
   42,820.78x = 59,042.34 × 34,316.08
4. Step 4: Simplify right side
   42,820.78x = 2,026,101,560.64
5. Step 5: Solve for x
   x = 2,026,101,560.64/42,820.78
6. Step 6: Final answer
   x = 47,315.85