Finding the Fourth Proportional to 116,152.02, 160,338.72 and 78,477.30

Step by Step Solution

1. Step 1: Write the proportion equation
   116,152.02 : 160,338.72 = 78,477.30 : x
2. Step 2: Convert to fraction form
   116,152.02/160,338.72 = 78,477.30/x
3. Step 3: Cross multiply
   116,152.02x = 160,338.72 × 78,477.30
4. Step 4: Simplify right side
   116,152.02x = 12,582,949,831.06
5. Step 5: Solve for x
   x = 12,582,949,831.06/116,152.02
6. Step 6: Final answer
   x = 108,331.73