Finding the Fourth Proportional to 42,772,467.83, 64,133,080.02 and 13,613,711.79

Step by Step Solution

1. Step 1: Write the proportion equation
   42,772,467.83 : 64,133,080.02 = 13,613,711.79 : x
2. Step 2: Convert to fraction form
   42,772,467.83/64,133,080.02 = 13,613,711.79/x
3. Step 3: Cross multiply
   42,772,467.83x = 64,133,080.02 × 13,613,711.79
4. Step 4: Simplify right side
   42,772,467.83x = 873,089,267,597,287.38
5. Step 5: Solve for x
   x = 873,089,267,597,287.38/42,772,467.83
6. Step 6: Final answer
   x = 20,412,412.75