Finding the Fourth Proportional to 144,410.31, 216,435.06 and 69,516.54

Step by Step Solution

1. Step 1: Write the proportion equation
   144,410.31 : 216,435.06 = 69,516.54 : x
2. Step 2: Convert to fraction form
   144,410.31/216,435.06 = 69,516.54/x
3. Step 3: Cross multiply
   144,410.31x = 216,435.06 × 69,516.54
4. Step 4: Simplify right side
   144,410.31x = 15,045,816,505.89
5. Step 5: Solve for x
   x = 15,045,816,505.89/144,410.31
6. Step 6: Final answer
   x = 104,187.97