Finding the Fourth Proportional to 9,931.91, 14,900.43 and 3,692.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,931.91 : 14,900.43 = 3,692.12 : x
2. Step 2: Convert to fraction form
   9,931.91/14,900.43 = 3,692.12/x
3. Step 3: Cross multiply
   9,931.91x = 14,900.43 × 3,692.12
4. Step 4: Simplify right side
   9,931.91x = 55,014,175.61
5. Step 5: Solve for x
   x = 55,014,175.61/9,931.91
6. Step 6: Final answer
   x = 5,539.13