Finding the Fourth Proportional to 42,099.94, 58,072.71 and 30,755.58

Step by Step Solution

1. Step 1: Write the proportion equation
   42,099.94 : 58,072.71 = 30,755.58 : x
2. Step 2: Convert to fraction form
   42,099.94/58,072.71 = 30,755.58/x
3. Step 3: Cross multiply
   42,099.94x = 58,072.71 × 30,755.58
4. Step 4: Simplify right side
   42,099.94x = 1,786,059,878.22
5. Step 5: Solve for x
   x = 1,786,059,878.22/42,099.94
6. Step 6: Final answer
   x = 42,424.29