Finding the Fourth Proportional to 248,385,152.89, 342,773,777.83 and 136,879,994.49

Step by Step Solution

1. Step 1: Write the proportion equation
   248,385,152.89 : 342,773,777.83 = 136,879,994.49 : x
2. Step 2: Convert to fraction form
   248,385,152.89/342,773,777.83 = 136,879,994.49/x
3. Step 3: Cross multiply
   248,385,152.89x = 342,773,777.83 × 136,879,994.49
4. Step 4: Simplify right side
   248,385,152.89x = 46,918,872,820,857,000
5. Step 5: Solve for x
   x = 46,918,872,820,857,000/248,385,152.89
6. Step 6: Final answer
   x = 188,895,641.61