Finding the Fourth Proportional to 12,748,345.25, 19,116,891.81 and 3,648,370.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,748,345.25 : 19,116,891.81 = 3,648,370.88 : x
2. Step 2: Convert to fraction form
   12,748,345.25/19,116,891.81 = 3,648,370.88/x
3. Step 3: Cross multiply
   12,748,345.25x = 19,116,891.81 × 3,648,370.88
4. Step 4: Simplify right side
   12,748,345.25x = 69,745,511,443,506.71
5. Step 5: Solve for x
   x = 69,745,511,443,506.71/12,748,345.25
6. Step 6: Final answer
   x = 5,470,946.24