Finding the Fourth Proportional to 172,261.77, 237,667.82 and 100,590.09

Step by Step Solution

1. Step 1: Write the proportion equation
   172,261.77 : 237,667.82 = 100,590.09 : x
2. Step 2: Convert to fraction form
   172,261.77/237,667.82 = 100,590.09/x
3. Step 3: Cross multiply
   172,261.77x = 237,667.82 × 100,590.09
4. Step 4: Simplify right side
   172,261.77x = 23,907,026,900.95
5. Step 5: Solve for x
   x = 23,907,026,900.95/172,261.77
6. Step 6: Final answer
   x = 138,783.13