Finding the Fourth Proportional to 16,638,196.80, 23,343,864 and 16,638,196.80

Step by Step Solution

1. Step 1: Write the proportion equation
   16,638,196.80 : 23,343,864 = 16,638,196.80 : x
2. Step 2: Convert to fraction form
   16,638,196.80/23,343,864 = 16,638,196.80/x
3. Step 3: Cross multiply
   16,638,196.80x = 23,343,864 × 16,638,196.80
4. Step 4: Simplify right side
   16,638,196.80x = 388,399,803,304,435.19
5. Step 5: Solve for x
   x = 388,399,803,304,435.19/16,638,196.80
6. Step 6: Final answer
   x = 23,343,864