Finding the Fourth Proportional to 42,317.79, 58,388.20 and 25,314.58

Step by Step Solution

1. Step 1: Write the proportion equation
   42,317.79 : 58,388.20 = 25,314.58 : x
2. Step 2: Convert to fraction form
   42,317.79/58,388.20 = 25,314.58/x
3. Step 3: Cross multiply
   42,317.79x = 58,388.20 × 25,314.58
4. Step 4: Simplify right side
   42,317.79x = 1,478,072,759.96
5. Step 5: Solve for x
   x = 1,478,072,759.96/42,317.79
6. Step 6: Final answer
   x = 34,927.93