Finding the Fourth Proportional to 248,254,671.56, 342,578,784.72 and 136,743,111.84

Step by Step Solution

1. Step 1: Write the proportion equation
   248,254,671.56 : 342,578,784.72 = 136,743,111.84 : x
2. Step 2: Convert to fraction form
   248,254,671.56/342,578,784.72 = 136,743,111.84/x
3. Step 3: Cross multiply
   248,254,671.56x = 342,578,784.72 × 136,743,111.84
4. Step 4: Simplify right side
   248,254,671.56x = 46,845,289,072,978,248
5. Step 5: Solve for x
   x = 46,845,289,072,978,248/248,254,671.56
6. Step 6: Final answer
   x = 188,698,519.87