Finding the Fourth Proportional to 12,781,384.96, 19,172,080.20 and 3,196,764.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,781,384.96 : 19,172,080.20 = 3,196,764.48 : x
2. Step 2: Convert to fraction form
   12,781,384.96/19,172,080.20 = 3,196,764.48/x
3. Step 3: Cross multiply
   12,781,384.96x = 19,172,080.20 × 3,196,764.48
4. Step 4: Simplify right side
   12,781,384.96x = 61,288,624,991,071.30
5. Step 5: Solve for x
   x = 61,288,624,991,071.30/12,781,384.96
6. Step 6: Final answer
   x = 4,795,147.41