Finding the Fourth Proportional to 84,134.69, 126,096.78 and 42,026.52

Step by Step Solution

1. Step 1: Write the proportion equation
   84,134.69 : 126,096.78 = 42,026.52 : x
2. Step 2: Convert to fraction form
   84,134.69/126,096.78 = 42,026.52/x
3. Step 3: Cross multiply
   84,134.69x = 126,096.78 × 42,026.52
4. Step 4: Simplify right side
   84,134.69x = 5,299,408,846.61
5. Step 5: Solve for x
   x = 5,299,408,846.61/84,134.69
6. Step 6: Final answer
   x = 62,987.21