Finding the Fourth Proportional to 91,938.90, 137,905.59 and 25,383.09

Step by Step Solution

1. Step 1: Write the proportion equation
   91,938.90 : 137,905.59 = 25,383.09 : x
2. Step 2: Convert to fraction form
   91,938.90/137,905.59 = 25,383.09/x
3. Step 3: Cross multiply
   91,938.90x = 137,905.59 × 25,383.09
4. Step 4: Simplify right side
   91,938.90x = 3,500,470,002.47
5. Step 5: Solve for x
   x = 3,500,470,002.47/91,938.90
6. Step 6: Final answer
   x = 38,073.87