Finding the Fourth Proportional to 91,965.39, 137,950.69 and 25,405.53

Step by Step Solution

1. Step 1: Write the proportion equation
   91,965.39 : 137,950.69 = 25,405.53 : x
2. Step 2: Convert to fraction form
   91,965.39/137,950.69 = 25,405.53/x
3. Step 3: Cross multiply
   91,965.39x = 137,950.69 × 25,405.53
4. Step 4: Simplify right side
   91,965.39x = 3,504,710,393.32
5. Step 5: Solve for x
   x = 3,504,710,393.32/91,965.39
6. Step 6: Final answer
   x = 38,109.01