Finding the Fourth Proportional to 116,849.99, 161,250.55 and 65,862.72

Step by Step Solution

1. Step 1: Write the proportion equation
   116,849.99 : 161,250.55 = 65,862.72 : x
2. Step 2: Convert to fraction form
   116,849.99/161,250.55 = 65,862.72/x
3. Step 3: Cross multiply
   116,849.99x = 161,250.55 × 65,862.72
4. Step 4: Simplify right side
   116,849.99x = 10,620,399,659.84
5. Step 5: Solve for x
   x = 10,620,399,659.84/116,849.99
6. Step 6: Final answer
   x = 90,889.18