Finding the Fourth Proportional to 5,390,083.37, 8,084,856.31 and 1,978,101.53

Step by Step Solution

1. Step 1: Write the proportion equation
   5,390,083.37 : 8,084,856.31 = 1,978,101.53 : x
2. Step 2: Convert to fraction form
   5,390,083.37/8,084,856.31 = 1,978,101.53/x
3. Step 3: Cross multiply
   5,390,083.37x = 8,084,856.31 × 1,978,101.53
4. Step 4: Simplify right side
   5,390,083.37x = 15,992,666,636,641.15
5. Step 5: Solve for x
   x = 15,992,666,636,641.15/5,390,083.37
6. Step 6: Final answer
   x = 2,967,053.67