Finding the Fourth Proportional to 171,607.30, 236,555.57 and 120,476.59

Step by Step Solution

1. Step 1: Write the proportion equation
   171,607.30 : 236,555.57 = 120,476.59 : x
2. Step 2: Convert to fraction form
   171,607.30/236,555.57 = 120,476.59/x
3. Step 3: Cross multiply
   171,607.30x = 236,555.57 × 120,476.59
4. Step 4: Simplify right side
   171,607.30x = 28,499,408,128.91
5. Step 5: Solve for x
   x = 28,499,408,128.91/171,607.30
6. Step 6: Final answer
   x = 166,073.40