Finding the Fourth Proportional to 300,406,280.18, 414,555,179.67 and 166,443,707.81

Step by Step Solution

1. Step 1: Write the proportion equation
   300,406,280.18 : 414,555,179.67 = 166,443,707.81 : x
2. Step 2: Convert to fraction form
   300,406,280.18/414,555,179.67 = 166,443,707.81/x
3. Step 3: Cross multiply
   300,406,280.18x = 414,555,179.67 × 166,443,707.81
4. Step 4: Simplify right side
   300,406,280.18x = 69,000,101,197,151,920
5. Step 5: Solve for x
   x = 69,000,101,197,151,920/300,406,280.18
6. Step 6: Final answer
   x = 229,689,276.66