Finding the Fourth Proportional to 12,144,104.07, 18,221,191.06 and 5,317,153.53

Step by Step Solution

1. Step 1: Write the proportion equation
   12,144,104.07 : 18,221,191.06 = 5,317,153.53 : x
2. Step 2: Convert to fraction form
   12,144,104.07/18,221,191.06 = 5,317,153.53/x
3. Step 3: Cross multiply
   12,144,104.07x = 18,221,191.06 × 5,317,153.53
4. Step 4: Simplify right side
   12,144,104.07x = 96,884,870,365,483.44
5. Step 5: Solve for x
   x = 96,884,870,365,483.44/12,144,104.07
6. Step 6: Final answer
   x = 7,977,934.79