Finding the Fourth Proportional to 12,144,104.57, 18,221,191.82 and 5,317,154.03

Step by Step Solution

1. Step 1: Write the proportion equation
   12,144,104.57 : 18,221,191.82 = 5,317,154.03 : x
2. Step 2: Convert to fraction form
   12,144,104.57/18,221,191.82 = 5,317,154.03/x
3. Step 3: Cross multiply
   12,144,104.57x = 18,221,191.82 × 5,317,154.03
4. Step 4: Simplify right side
   12,144,104.57x = 96,884,883,399,424.31
5. Step 5: Solve for x
   x = 96,884,883,399,424.31/12,144,104.57
6. Step 6: Final answer
   x = 7,977,935.54