Finding the Fourth Proportional to 12,249,141.62, 18,362,354.61 and 5,422,074.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,249,141.62 : 18,362,354.61 = 5,422,074.86 : x
2. Step 2: Convert to fraction form
   12,249,141.62/18,362,354.61 = 5,422,074.86/x
3. Step 3: Cross multiply
   12,249,141.62x = 18,362,354.61 × 5,422,074.86
4. Step 4: Simplify right side
   12,249,141.62x = 99,562,061,301,286.11
5. Step 5: Solve for x
   x = 99,562,061,301,286.11/12,249,141.62
6. Step 6: Final answer
   x = 8,128,084.76