Finding the Fourth Proportional to 116,086.29, 160,131.20 and 72,997.59

Step by Step Solution

1. Step 1: Write the proportion equation
   116,086.29 : 160,131.20 = 72,997.59 : x
2. Step 2: Convert to fraction form
   116,086.29/160,131.20 = 72,997.59/x
3. Step 3: Cross multiply
   116,086.29x = 160,131.20 × 72,997.59
4. Step 4: Simplify right side
   116,086.29x = 11,689,191,683.81
5. Step 5: Solve for x
   x = 11,689,191,683.81/116,086.29
6. Step 6: Final answer
   x = 100,693.99