Finding the Fourth Proportional to 12,898,639.82, 19,341,980.93 and 4,809,443.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,898,639.82 : 19,341,980.93 = 4,809,443.49 : x
2. Step 2: Convert to fraction form
   12,898,639.82/19,341,980.93 = 4,809,443.49/x
3. Step 3: Cross multiply
   12,898,639.82x = 19,341,980.93 × 4,809,443.49
4. Step 4: Simplify right side
   12,898,639.82x = 93,024,164,327,871.20
5. Step 5: Solve for x
   x = 93,024,164,327,871.20/12,898,639.82
6. Step 6: Final answer
   x = 7,211,935.96