Finding the Fourth Proportional to 116,784.15, 161,168.01 and 71,447.94

Step by Step Solution

1. Step 1: Write the proportion equation
   116,784.15 : 161,168.01 = 71,447.94 : x
2. Step 2: Convert to fraction form
   116,784.15/161,168.01 = 71,447.94/x
3. Step 3: Cross multiply
   116,784.15x = 161,168.01 × 71,447.94
4. Step 4: Simplify right side
   116,784.15x = 11,515,122,308.40
5. Step 5: Solve for x
   x = 11,515,122,308.40/116,784.15
6. Step 6: Final answer
   x = 98,601.76