Finding the Fourth Proportional to 116,487.30, 160,730.78 and 65,493.48

Step by Step Solution

1. Step 1: Write the proportion equation
   116,487.30 : 160,730.78 = 65,493.48 : x
2. Step 2: Convert to fraction form
   116,487.30/160,730.78 = 65,493.48/x
3. Step 3: Cross multiply
   116,487.30x = 160,730.78 × 65,493.48
4. Step 4: Simplify right side
   116,487.30x = 10,526,818,125.31
5. Step 5: Solve for x
   x = 10,526,818,125.31/116,487.30
6. Step 6: Final answer
   x = 90,368.81