Finding the Fourth Proportional to 18,085,520.96, 27,128,536.72 and 5,306,289.52

Step by Step Solution

1. Step 1: Write the proportion equation
   18,085,520.96 : 27,128,536.72 = 5,306,289.52 : x
2. Step 2: Convert to fraction form
   18,085,520.96/27,128,536.72 = 5,306,289.52/x
3. Step 3: Cross multiply
   18,085,520.96x = 27,128,536.72 × 5,306,289.52
4. Step 4: Simplify right side
   18,085,520.96x = 143,951,870,090,271.16
5. Step 5: Solve for x
   x = 143,951,870,090,271.16/18,085,520.96
6. Step 6: Final answer
   x = 7,959,509.18