Finding the Fourth Proportional to 126,105,196.98, 189,165,786.93 and 53,308,410.42

Step by Step Solution

1. Step 1: Write the proportion equation
   126,105,196.98 : 189,165,786.93 = 53,308,410.42 : x
2. Step 2: Convert to fraction form
   126,105,196.98/189,165,786.93 = 53,308,410.42/x
3. Step 3: Cross multiply
   126,105,196.98x = 189,165,786.93 × 53,308,410.42
4. Step 4: Simplify right side
   126,105,196.98x = 10,084,127,407,086,712
5. Step 5: Solve for x
   x = 10,084,127,407,086,712/126,105,196.98
6. Step 6: Final answer
   x = 79,965,993.86