Finding the Fourth Proportional to 64,143.72, 88,460.82 and 53,424.18

Step by Step Solution

1. Step 1: Write the proportion equation
   64,143.72 : 88,460.82 = 53,424.18 : x
2. Step 2: Convert to fraction form
   64,143.72/88,460.82 = 53,424.18/x
3. Step 3: Cross multiply
   64,143.72x = 88,460.82 × 53,424.18
4. Step 4: Simplify right side
   64,143.72x = 4,725,946,770.63
5. Step 5: Solve for x
   x = 4,725,946,770.63/64,143.72
6. Step 6: Final answer
   x = 73,677.47