Finding the Fourth Proportional to 116,162.02, 160,352.52 and 78,487.30

Step by Step Solution

1. Step 1: Write the proportion equation
   116,162.02 : 160,352.52 = 78,487.30 : x
2. Step 2: Convert to fraction form
   116,162.02/160,352.52 = 78,487.30/x
3. Step 3: Cross multiply
   116,162.02x = 160,352.52 × 78,487.30
4. Step 4: Simplify right side
   116,162.02x = 12,585,636,343.00
5. Step 5: Solve for x
   x = 12,585,636,343.00/116,162.02
6. Step 6: Final answer
   x = 108,345.54