Finding the Fourth Proportional to 124,209, 171,408.83 and 67,620.78

Step by Step Solution

1. Step 1: Write the proportion equation
   124,209 : 171,408.83 = 67,620.78 : x
2. Step 2: Convert to fraction form
   124,209/171,408.83 = 67,620.78/x
3. Step 3: Cross multiply
   124,209x = 171,408.83 × 67,620.78
4. Step 4: Simplify right side
   124,209x = 11,590,798,445.38
5. Step 5: Solve for x
   x = 11,590,798,445.38/124,209
6. Step 6: Final answer
   x = 93,316.90