Finding the Fourth Proportional to 13,152,194.81, 18,150,661.43 and 7,271,720.18

Step by Step Solution

1. Step 1: Write the proportion equation
   13,152,194.81 : 18,150,661.43 = 7,271,720.18 : x
2. Step 2: Convert to fraction form
   13,152,194.81/18,150,661.43 = 7,271,720.18/x
3. Step 3: Cross multiply
   13,152,194.81x = 18,150,661.43 × 7,271,720.18
4. Step 4: Simplify right side
   13,152,194.81x = 131,986,531,010,004.09
5. Step 5: Solve for x
   x = 131,986,531,010,004.09/13,152,194.81
6. Step 6: Final answer
   x = 10,035,323.61