Finding the Fourth Proportional to 21,661,051,185.58, 29,881,249,381.70 and 14,147,070,659.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,661,051,185.58 : 29,881,249,381.70 = 14,147,070,659.50 : x
2. Step 2: Convert to fraction form
   21,661,051,185.58/29,881,249,381.70 = 14,147,070,659.50/x
3. Step 3: Cross multiply
   21,661,051,185.58x = 29,881,249,381.70 × 14,147,070,659.50
4. Step 4: Simplify right side
   21,661,051,185.58x = 422,732,146,397,050,568,704
5. Step 5: Solve for x
   x = 422,732,146,397,050,568,704/21,661,051,185.58
6. Step 6: Final answer
   x = 19,515,772,469.92