Finding the Fourth Proportional to 12,884,504.30, 17,780,983.94 and 7,855,544.03

Step by Step Solution

1. Step 1: Write the proportion equation
   12,884,504.30 : 17,780,983.94 = 7,855,544.03 : x
2. Step 2: Convert to fraction form
   12,884,504.30/17,780,983.94 = 7,855,544.03/x
3. Step 3: Cross multiply
   12,884,504.30x = 17,780,983.94 × 7,855,544.03
4. Step 4: Simplify right side
   12,884,504.30x = 139,679,302,109,210.23
5. Step 5: Solve for x
   x = 139,679,302,109,210.23/12,884,504.30
6. Step 6: Final answer
   x = 10,840,875.12