Finding the Fourth Proportional to 31,818,914.93, 47,708,839.37 and 12,365,426.55

Step by Step Solution

1. Step 1: Write the proportion equation
   31,818,914.93 : 47,708,839.37 = 12,365,426.55 : x
2. Step 2: Convert to fraction form
   31,818,914.93/47,708,839.37 = 12,365,426.55/x
3. Step 3: Cross multiply
   31,818,914.93x = 47,708,839.37 × 12,365,426.55
4. Step 4: Simplify right side
   31,818,914.93x = 589,940,149,155,749.50
5. Step 5: Solve for x
   x = 589,940,149,155,749.50/31,818,914.93
6. Step 6: Final answer
   x = 18,540,548.93