Finding the Fourth Proportional to 72,544.62, 100,158 and 59,148

Step by Step Solution

1. Step 1: Write the proportion equation
   72,544.62 : 100,158 = 59,148 : x
2. Step 2: Convert to fraction form
   72,544.62/100,158 = 59,148/x
3. Step 3: Cross multiply
   72,544.62x = 100,158 × 59,148
4. Step 4: Simplify right side
   72,544.62x = 5,924,145,384
5. Step 5: Solve for x
   x = 5,924,145,384/72,544.62
6. Step 6: Final answer
   x = 81,662.09