Finding the Fourth Proportional to 116,475, 160,741.17 and 65,503.78

Step by Step Solution

1. Step 1: Write the proportion equation
   116,475 : 160,741.17 = 65,503.78 : x
2. Step 2: Convert to fraction form
   116,475/160,741.17 = 65,503.78/x
3. Step 3: Cross multiply
   116,475x = 160,741.17 × 65,503.78
4. Step 4: Simplify right side
   116,475x = 10,529,154,236.62
5. Step 5: Solve for x
   x = 10,529,154,236.62/116,475
6. Step 6: Final answer
   x = 90,398.41