Finding the Fourth Proportional to 171,165,089.49, 256,870,219.73 and 72,865,714.05

Step by Step Solution

1. Step 1: Write the proportion equation
   171,165,089.49 : 256,870,219.73 = 72,865,714.05 : x
2. Step 2: Convert to fraction form
   171,165,089.49/256,870,219.73 = 72,865,714.05/x
3. Step 3: Cross multiply
   171,165,089.49x = 256,870,219.73 × 72,865,714.05
4. Step 4: Simplify right side
   171,165,089.49x = 18,717,031,978,543,500
5. Step 5: Solve for x
   x = 18,717,031,978,543,500/171,165,089.49
6. Step 6: Final answer
   x = 109,350,756.24