Finding the Fourth Proportional to 108,056.25, 162,141.48 and 76,669.16

Step by Step Solution

1. Step 1: Write the proportion equation
   108,056.25 : 162,141.48 = 76,669.16 : x
2. Step 2: Convert to fraction form
   108,056.25/162,141.48 = 76,669.16/x
3. Step 3: Cross multiply
   108,056.25x = 162,141.48 × 76,669.16
4. Step 4: Simplify right side
   108,056.25x = 12,431,251,072.76
5. Step 5: Solve for x
   x = 12,431,251,072.76/108,056.25
6. Step 6: Final answer
   x = 115,044.26