Finding the Fourth Proportional to 279,754,462.98, 419,682,186.72 and 126,472,706.82

Step by Step Solution

1. Step 1: Write the proportion equation
   279,754,462.98 : 419,682,186.72 = 126,472,706.82 : x
2. Step 2: Convert to fraction form
   279,754,462.98/419,682,186.72 = 126,472,706.82/x
3. Step 3: Cross multiply
   279,754,462.98x = 419,682,186.72 × 126,472,706.82
4. Step 4: Simplify right side
   279,754,462.98x = 53,078,342,158,615,056
5. Step 5: Solve for x
   x = 53,078,342,158,615,056/279,754,462.98
6. Step 6: Final answer
   x = 189,731,887.00