Finding the Fourth Proportional to 42,380.94, 58,488.09 and 25,619.34

Step by Step Solution

1. Step 1: Write the proportion equation
   42,380.94 : 58,488.09 = 25,619.34 : x
2. Step 2: Convert to fraction form
   42,380.94/58,488.09 = 25,619.34/x
3. Step 3: Cross multiply
   42,380.94x = 58,488.09 × 25,619.34
4. Step 4: Simplify right side
   42,380.94x = 1,498,426,263.66
5. Step 5: Solve for x
   x = 1,498,426,263.66/42,380.94
6. Step 6: Final answer
   x = 35,356.14