Finding the Fourth Proportional to 42,850,779.33, 64,278,600.63 and 13,707,178.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,850,779.33 : 64,278,600.63 = 13,707,178.20 : x
2. Step 2: Convert to fraction form
   42,850,779.33/64,278,600.63 = 13,707,178.20/x
3. Step 3: Cross multiply
   42,850,779.33x = 64,278,600.63 × 13,707,178.20
4. Step 4: Simplify right side
   42,850,779.33x = 881,078,233,282,042.25
5. Step 5: Solve for x
   x = 881,078,233,282,042.25/42,850,779.33
6. Step 6: Final answer
   x = 20,561,545.14