Finding the Fourth Proportional to 116,342.94, 160,614.49 and 78,302.47

Step by Step Solution

1. Step 1: Write the proportion equation
   116,342.94 : 160,614.49 = 78,302.47 : x
2. Step 2: Convert to fraction form
   116,342.94/160,614.49 = 78,302.47/x
3. Step 3: Cross multiply
   116,342.94x = 160,614.49 × 78,302.47
4. Step 4: Simplify right side
   116,342.94x = 12,576,510,687.50
5. Step 5: Solve for x
   x = 12,576,510,687.50/116,342.94
6. Step 6: Final answer
   x = 108,098.62