Finding the Fourth Proportional to 5,322,499.57, 7,983,748.50 and 1,278,987.37

Step by Step Solution

1. Step 1: Write the proportion equation
   5,322,499.57 : 7,983,748.50 = 1,278,987.37 : x
2. Step 2: Convert to fraction form
   5,322,499.57/7,983,748.50 = 1,278,987.37/x
3. Step 3: Cross multiply
   5,322,499.57x = 7,983,748.50 × 1,278,987.37
4. Step 4: Simplify right side
   5,322,499.57x = 10,211,113,472,000.87
5. Step 5: Solve for x
   x = 10,211,113,472,000.87/5,322,499.57
6. Step 6: Final answer
   x = 1,918,480.84