Finding the Fourth Proportional to 105,978,631.12, 146,229,070.84 and 61,917,120.24

Step by Step Solution

1. Step 1: Write the proportion equation
   105,978,631.12 : 146,229,070.84 = 61,917,120.24 : x
2. Step 2: Convert to fraction form
   105,978,631.12/146,229,070.84 = 61,917,120.24/x
3. Step 3: Cross multiply
   105,978,631.12x = 146,229,070.84 × 61,917,120.24
4. Step 4: Simplify right side
   105,978,631.12x = 9,054,082,961,783,758
5. Step 5: Solve for x
   x = 9,054,082,961,783,758/105,978,631.12
6. Step 6: Final answer
   x = 85,433,099.73