Finding the Fourth Proportional to 42,707,253.51, 64,071,804.33 and 12,415,116.51

Step by Step Solution

1. Step 1: Write the proportion equation
   42,707,253.51 : 64,071,804.33 = 12,415,116.51 : x
2. Step 2: Convert to fraction form
   42,707,253.51/64,071,804.33 = 12,415,116.51/x
3. Step 3: Cross multiply
   42,707,253.51x = 64,071,804.33 × 12,415,116.51
4. Step 4: Simplify right side
   42,707,253.51x = 795,458,915,762,872.50
5. Step 5: Solve for x
   x = 795,458,915,762,872.50/42,707,253.51
6. Step 6: Final answer
   x = 18,625,850.42