Finding the Fourth Proportional to 144,560.72, 216,748.56 and 69,531.46

Step by Step Solution

1. Step 1: Write the proportion equation
   144,560.72 : 216,748.56 = 69,531.46 : x
2. Step 2: Convert to fraction form
   144,560.72/216,748.56 = 69,531.46/x
3. Step 3: Cross multiply
   144,560.72x = 216,748.56 × 69,531.46
4. Step 4: Simplify right side
   144,560.72x = 15,070,843,829.70
5. Step 5: Solve for x
   x = 15,070,843,829.70/144,560.72
6. Step 6: Final answer
   x = 104,252.69