Finding the Fourth Proportional to 118,045.38, 177,120.42 and 61,872.15

Step by Step Solution

1. Step 1: Write the proportion equation
   118,045.38 : 177,120.42 = 61,872.15 : x
2. Step 2: Convert to fraction form
   118,045.38/177,120.42 = 61,872.15/x
3. Step 3: Cross multiply
   118,045.38x = 177,120.42 × 61,872.15
4. Step 4: Simplify right side
   118,045.38x = 10,958,821,194.30
5. Step 5: Solve for x
   x = 10,958,821,194.30/118,045.38
6. Step 6: Final answer
   x = 92,835.66