Finding the Fourth Proportional to 5,318,927.31, 7,978,390.91 and 1,329,839.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,318,927.31 : 7,978,390.91 = 1,329,839.31 : x
2. Step 2: Convert to fraction form
   5,318,927.31/7,978,390.91 = 1,329,839.31/x
3. Step 3: Cross multiply
   5,318,927.31x = 7,978,390.91 × 1,329,839.31
4. Step 4: Simplify right side
   5,318,927.31x = 10,609,977,856,015.48
5. Step 5: Solve for x
   x = 10,609,977,856,015.48/5,318,927.31
6. Step 6: Final answer
   x = 1,994,758.95