Finding the Fourth Proportional to 42,386.22, 58,490.91 and 25,391.16

Step by Step Solution

1. Step 1: Write the proportion equation
   42,386.22 : 58,490.91 = 25,391.16 : x
2. Step 2: Convert to fraction form
   42,386.22/58,490.91 = 25,391.16/x
3. Step 3: Cross multiply
   42,386.22x = 58,490.91 × 25,391.16
4. Step 4: Simplify right side
   42,386.22x = 1,485,152,054.36
5. Step 5: Solve for x
   x = 1,485,152,054.36/42,386.22
6. Step 6: Final answer
   x = 35,038.56