Finding the Fourth Proportional to 42,739.60, 58,982.72 and 25,749.17

Step by Step Solution

1. Step 1: Write the proportion equation
   42,739.60 : 58,982.72 = 25,749.17 : x
2. Step 2: Convert to fraction form
   42,739.60/58,982.72 = 25,749.17/x
3. Step 3: Cross multiply
   42,739.60x = 58,982.72 × 25,749.17
4. Step 4: Simplify right side
   42,739.60x = 1,518,756,084.34
5. Step 5: Solve for x
   x = 1,518,756,084.34/42,739.60
6. Step 6: Final answer
   x = 35,535.10