Finding the Fourth Proportional to 31,215,691.48, 46,820,172.58 and 8,188,933.72

Step by Step Solution

1. Step 1: Write the proportion equation
   31,215,691.48 : 46,820,172.58 = 8,188,933.72 : x
2. Step 2: Convert to fraction form
   31,215,691.48/46,820,172.58 = 8,188,933.72/x
3. Step 3: Cross multiply
   31,215,691.48x = 46,820,172.58 × 8,188,933.72
4. Step 4: Simplify right side
   31,215,691.48x = 383,407,290,016,581.38
5. Step 5: Solve for x
   x = 383,407,290,016,581.38/31,215,691.48
6. Step 6: Final answer
   x = 12,282,517.92