Finding the Fourth Proportional to 117,144, 161,658.48 and 63,429

Step by Step Solution

1. Step 1: Write the proportion equation
   117,144 : 161,658.48 = 63,429 : x
2. Step 2: Convert to fraction form
   117,144/161,658.48 = 63,429/x
3. Step 3: Cross multiply
   117,144x = 161,658.48 × 63,429
4. Step 4: Simplify right side
   117,144x = 10,253,835,727.92
5. Step 5: Solve for x
   x = 10,253,835,727.92/117,144
6. Step 6: Final answer
   x = 87,531.89