Finding the Fourth Proportional to 31,353,078.72, 47,035,674.56 and 11,920,793.81

Step by Step Solution

1. Step 1: Write the proportion equation
   31,353,078.72 : 47,035,674.56 = 11,920,793.81 : x
2. Step 2: Convert to fraction form
   31,353,078.72/47,035,674.56 = 11,920,793.81/x
3. Step 3: Cross multiply
   31,353,078.72x = 47,035,674.56 × 11,920,793.81
4. Step 4: Simplify right side
   31,353,078.72x = 560,702,578,359,775.56
5. Step 5: Solve for x
   x = 560,702,578,359,775.56/31,353,078.72
6. Step 6: Final answer
   x = 17,883,493.47