Finding the Fourth Proportional to 42,088.98, 58,104.63 and 30,745.74

Step by Step Solution

1. Step 1: Write the proportion equation
   42,088.98 : 58,104.63 = 30,745.74 : x
2. Step 2: Convert to fraction form
   42,088.98/58,104.63 = 30,745.74/x
3. Step 3: Cross multiply
   42,088.98x = 58,104.63 × 30,745.74
4. Step 4: Simplify right side
   42,088.98x = 1,786,469,846.78
5. Step 5: Solve for x
   x = 1,786,469,846.78/42,088.98
6. Step 6: Final answer
   x = 42,445.07