Finding the Fourth Proportional to 6,499,716.32, 8,978,951.58 and 5,191,250.48

Step by Step Solution

1. Step 1: Write the proportion equation
   6,499,716.32 : 8,978,951.58 = 5,191,250.48 : x
2. Step 2: Convert to fraction form
   6,499,716.32/8,978,951.58 = 5,191,250.48/x
3. Step 3: Cross multiply
   6,499,716.32x = 8,978,951.58 × 5,191,250.48
4. Step 4: Simplify right side
   6,499,716.32x = 46,611,986,699,571.77
5. Step 5: Solve for x
   x = 46,611,986,699,571.77/6,499,716.32
6. Step 6: Final answer
   x = 7,171,387.86