Finding the Fourth Proportional to 116,618.58, 160,926.98 and 65,633.43

Step by Step Solution

1. Step 1: Write the proportion equation
   116,618.58 : 160,926.98 = 65,633.43 : x
2. Step 2: Convert to fraction form
   116,618.58/160,926.98 = 65,633.43/x
3. Step 3: Cross multiply
   116,618.58x = 160,926.98 × 65,633.43
4. Step 4: Simplify right side
   116,618.58x = 10,562,189,348.77
5. Step 5: Solve for x
   x = 10,562,189,348.77/116,618.58
6. Step 6: Final answer
   x = 90,570.38