Finding the Fourth Proportional to 42,272.58, 58,293.54 and 30,943.92

Step by Step Solution

1. Step 1: Write the proportion equation
   42,272.58 : 58,293.54 = 30,943.92 : x
2. Step 2: Convert to fraction form
   42,272.58/58,293.54 = 30,943.92/x
3. Step 3: Cross multiply
   42,272.58x = 58,293.54 × 30,943.92
4. Step 4: Simplify right side
   42,272.58x = 1,803,830,638.28
5. Step 5: Solve for x
   x = 1,803,830,638.28/42,272.58
6. Step 6: Final answer
   x = 42,671.41