Finding the Fourth Proportional to 12,730,977.63, 19,096,280.28 and 3,146,357.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,730,977.63 : 19,096,280.28 = 3,146,357.25 : x
2. Step 2: Convert to fraction form
   12,730,977.63/19,096,280.28 = 3,146,357.25/x
3. Step 3: Cross multiply
   12,730,977.63x = 19,096,280.28 × 3,146,357.25
4. Step 4: Simplify right side
   12,730,977.63x = 60,083,719,907,010.03
5. Step 5: Solve for x
   x = 60,083,719,907,010.03/12,730,977.63
6. Step 6: Final answer
   x = 4,719,489.87