Finding the Fourth Proportional to 84,150,399.72, 126,303,192.63 and 42,680,381.04

Step by Step Solution

1. Step 1: Write the proportion equation
   84,150,399.72 : 126,303,192.63 = 42,680,381.04 : x
2. Step 2: Convert to fraction form
   84,150,399.72/126,303,192.63 = 42,680,381.04/x
3. Step 3: Cross multiply
   84,150,399.72x = 126,303,192.63 × 42,680,381.04
4. Step 4: Simplify right side
   84,150,399.72x = 5,390,668,388,016,919
5. Step 5: Solve for x
   x = 5,390,668,388,016,919/84,150,399.72
6. Step 6: Final answer
   x = 64,059,926.11