Finding the Fourth Proportional to 42,379.88, 58,477.74 and 25,380.14

Step by Step Solution

1. Step 1: Write the proportion equation
   42,379.88 : 58,477.74 = 25,380.14 : x
2. Step 2: Convert to fraction form
   42,379.88/58,477.74 = 25,380.14/x
3. Step 3: Cross multiply
   42,379.88x = 58,477.74 × 25,380.14
4. Step 4: Simplify right side
   42,379.88x = 1,484,173,228.08
5. Step 5: Solve for x
   x = 1,484,173,228.08/42,379.88
6. Step 6: Final answer
   x = 35,020.70