Finding the Fourth Proportional to 61,200.69, 91,692.42 and 25,583.50

Step by Step Solution

1. Step 1: Write the proportion equation
   61,200.69 : 91,692.42 = 25,583.50 : x
2. Step 2: Convert to fraction form
   61,200.69/91,692.42 = 25,583.50/x
3. Step 3: Cross multiply
   61,200.69x = 91,692.42 × 25,583.50
4. Step 4: Simplify right side
   61,200.69x = 2,345,813,027.07
5. Step 5: Solve for x
   x = 2,345,813,027.07/61,200.69
6. Step 6: Final answer
   x = 38,329.85