Finding the Fourth Proportional to 21,325,859,465.47, 29,415,515,514.78 and 13,714,528,303.98

Step by Step Solution

1. Step 1: Write the proportion equation
   21,325,859,465.47 : 29,415,515,514.78 = 13,714,528,303.98 : x
2. Step 2: Convert to fraction form
   21,325,859,465.47/29,415,515,514.78 = 13,714,528,303.98/x
3. Step 3: Cross multiply
   21,325,859,465.47x = 29,415,515,514.78 × 13,714,528,303.98
4. Step 4: Simplify right side
   21,325,859,465.47x = 403,419,920,103,613,071,360
5. Step 5: Solve for x
   x = 403,419,920,103,613,071,360/21,325,859,465.47
6. Step 6: Final answer
   x = 18,916,936,068.01