Finding the Fourth Proportional to 116,842.72, 161,233.84 and 71,501.88

Step by Step Solution

1. Step 1: Write the proportion equation
   116,842.72 : 161,233.84 = 71,501.88 : x
2. Step 2: Convert to fraction form
   116,842.72/161,233.84 = 71,501.88/x
3. Step 3: Cross multiply
   116,842.72x = 161,233.84 × 71,501.88
4. Step 4: Simplify right side
   116,842.72x = 11,528,522,679.62
5. Step 5: Solve for x
   x = 11,528,522,679.62/116,842.72
6. Step 6: Final answer
   x = 98,667.02