Finding the Fourth Proportional to 18,621,092.72, 25,693,256.72 and 10,884,638.54

Step by Step Solution

1. Step 1: Write the proportion equation
   18,621,092.72 : 25,693,256.72 = 10,884,638.54 : x
2. Step 2: Convert to fraction form
   18,621,092.72/25,693,256.72 = 10,884,638.54/x
3. Step 3: Cross multiply
   18,621,092.72x = 25,693,256.72 × 10,884,638.54
4. Step 4: Simplify right side
   18,621,092.72x = 279,661,812,312,625.94
5. Step 5: Solve for x
   x = 279,661,812,312,625.94/18,621,092.72
6. Step 6: Final answer
   x = 15,018,550.01