Finding the Fourth Proportional to 118,317.78, 177,061.94 and 91,853.46

Step by Step Solution

1. Step 1: Write the proportion equation
   118,317.78 : 177,061.94 = 91,853.46 : x
2. Step 2: Convert to fraction form
   118,317.78/177,061.94 = 91,853.46/x
3. Step 3: Cross multiply
   118,317.78x = 177,061.94 × 91,853.46
4. Step 4: Simplify right side
   118,317.78x = 16,263,751,823.31
5. Step 5: Solve for x
   x = 16,263,751,823.31/118,317.78
6. Step 6: Final answer
   x = 137,458.22