Finding the Fourth Proportional to 248,254,665.58, 342,578,776.43 and 136,743,105.83

Step by Step Solution

1. Step 1: Write the proportion equation
   248,254,665.58 : 342,578,776.43 = 136,743,105.83 : x
2. Step 2: Convert to fraction form
   248,254,665.58/342,578,776.43 = 136,743,105.83/x
3. Step 3: Cross multiply
   248,254,665.58x = 342,578,776.43 × 136,743,105.83
4. Step 4: Simplify right side
   248,254,665.58x = 46,845,285,879,795,688
5. Step 5: Solve for x
   x = 46,845,285,879,795,688/248,254,665.58
6. Step 6: Final answer
   x = 188,698,511.55