Finding the Fourth Proportional to 13,900.82, 19,182.84 and 7,931.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,900.82 : 19,182.84 = 7,931.52 : x
2. Step 2: Convert to fraction form
   13,900.82/19,182.84 = 7,931.52/x
3. Step 3: Cross multiply
   13,900.82x = 19,182.84 × 7,931.52
4. Step 4: Simplify right side
   13,900.82x = 152,149,079.12
5. Step 5: Solve for x
   x = 152,149,079.12/13,900.82
6. Step 6: Final answer
   x = 10,945.34