Finding the Fourth Proportional to 116,559.63, 160,851.56 and 66,258.63

Step by Step Solution

1. Step 1: Write the proportion equation
   116,559.63 : 160,851.56 = 66,258.63 : x
2. Step 2: Convert to fraction form
   116,559.63/160,851.56 = 66,258.63/x
3. Step 3: Cross multiply
   116,559.63x = 160,851.56 × 66,258.63
4. Step 4: Simplify right side
   116,559.63x = 10,657,803,667.67
5. Step 5: Solve for x
   x = 10,657,803,667.67/116,559.63
6. Step 6: Final answer
   x = 91,436.49