Finding the Fourth Proportional to 81,674,111.10, 122,511,166.65 and 81,674,111.10

Step by Step Solution

1. Step 1: Write the proportion equation
   81,674,111.10 : 122,511,166.65 = 81,674,111.10 : x
2. Step 2: Convert to fraction form
   81,674,111.10/122,511,166.65 = 81,674,111.10/x
3. Step 3: Cross multiply
   81,674,111.10x = 122,511,166.65 × 81,674,111.10
4. Step 4: Simplify right side
   81,674,111.10x = 10,005,990,635,962,714
5. Step 5: Solve for x
   x = 10,005,990,635,962,714/81,674,111.10
6. Step 6: Final answer
   x = 122,511,166.65