Finding the Fourth Proportional to 116,760.61, 161,099.98 and 71,422.03

Step by Step Solution

1. Step 1: Write the proportion equation
   116,760.61 : 161,099.98 = 71,422.03 : x
2. Step 2: Convert to fraction form
   116,760.61/161,099.98 = 71,422.03/x
3. Step 3: Cross multiply
   116,760.61x = 161,099.98 × 71,422.03
4. Step 4: Simplify right side
   116,760.61x = 11,506,087,604.56
5. Step 5: Solve for x
   x = 11,506,087,604.56/116,760.61
6. Step 6: Final answer
   x = 98,544.26