Finding the Fourth Proportional to 91,580.36, 137,369.72 and 25,020.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,580.36 : 137,369.72 = 25,020.50 : x
2. Step 2: Convert to fraction form
   91,580.36/137,369.72 = 25,020.50/x
3. Step 3: Cross multiply
   91,580.36x = 137,369.72 × 25,020.50
4. Step 4: Simplify right side
   91,580.36x = 3,437,058,454.96
5. Step 5: Solve for x
   x = 3,437,058,454.96/91,580.36
6. Step 6: Final answer
   x = 37,530.52