Finding the Fourth Proportional to 31,818,918.32, 47,708,844.56 and 12,365,429.98

Step by Step Solution

1. Step 1: Write the proportion equation
   31,818,918.32 : 47,708,844.56 = 12,365,429.98 : x
2. Step 2: Convert to fraction form
   31,818,918.32/47,708,844.56 = 12,365,429.98/x
3. Step 3: Cross multiply
   31,818,918.32x = 47,708,844.56 × 12,365,429.98
4. Step 4: Simplify right side
   31,818,918.32x = 589,940,376,833,384
5. Step 5: Solve for x
   x = 589,940,376,833,384/31,818,918.32
6. Step 6: Final answer
   x = 18,540,554.11