Finding the Fourth Proportional to 116,085.29, 160,129.82 and 72,996.59

Step by Step Solution

1. Step 1: Write the proportion equation
   116,085.29 : 160,129.82 = 72,996.59 : x
2. Step 2: Convert to fraction form
   116,085.29/160,129.82 = 72,996.59/x
3. Step 3: Cross multiply
   116,085.29x = 160,129.82 × 72,996.59
4. Step 4: Simplify right side
   116,085.29x = 11,688,931,400.13
5. Step 5: Solve for x
   x = 11,688,931,400.13/116,085.29
6. Step 6: Final answer
   x = 100,692.62