Finding the Fourth Proportional to 168,049.72, 251,987.10 and 49,705.09

Step by Step Solution

1. Step 1: Write the proportion equation
   168,049.72 : 251,987.10 = 49,705.09 : x
2. Step 2: Convert to fraction form
   168,049.72/251,987.10 = 49,705.09/x
3. Step 3: Cross multiply
   168,049.72x = 251,987.10 × 49,705.09
4. Step 4: Simplify right side
   168,049.72x = 12,525,041,484.34
5. Step 5: Solve for x
   x = 12,525,041,484.34/168,049.72
6. Step 6: Final answer
   x = 74,531.76