Finding the Fourth Proportional to 42,772,468.33, 64,133,080.77 and 13,613,712.29

Step by Step Solution

1. Step 1: Write the proportion equation
   42,772,468.33 : 64,133,080.77 = 13,613,712.29 : x
2. Step 2: Convert to fraction form
   42,772,468.33/64,133,080.77 = 13,613,712.29/x
3. Step 3: Cross multiply
   42,772,468.33x = 64,133,080.77 × 13,613,712.29
4. Step 4: Simplify right side
   42,772,468.33x = 873,089,309,874,111.62
5. Step 5: Solve for x
   x = 873,089,309,874,111.62/42,772,468.33
6. Step 6: Final answer
   x = 20,412,413.50