Finding the Fourth Proportional to 116,953.68, 161,356.56 and 66,617.04

Step by Step Solution

1. Step 1: Write the proportion equation
   116,953.68 : 161,356.56 = 66,617.04 : x
2. Step 2: Convert to fraction form
   116,953.68/161,356.56 = 66,617.04/x
3. Step 3: Cross multiply
   116,953.68x = 161,356.56 × 66,617.04
4. Step 4: Simplify right side
   116,953.68x = 10,749,096,411.78
5. Step 5: Solve for x
   x = 10,749,096,411.78/116,953.68
6. Step 6: Final answer
   x = 91,909.01