Finding the Fourth Proportional to 8,308,978.55, 11,468,303.61 and 4,872,326.75

Step by Step Solution

1. Step 1: Write the proportion equation
   8,308,978.55 : 11,468,303.61 = 4,872,326.75 : x
2. Step 2: Convert to fraction form
   8,308,978.55/11,468,303.61 = 4,872,326.75/x
3. Step 3: Cross multiply
   8,308,978.55x = 11,468,303.61 × 4,872,326.75
4. Step 4: Simplify right side
   8,308,978.55x = 55,877,322,456,124.56
5. Step 5: Solve for x
   x = 55,877,322,456,124.56/8,308,978.55
6. Step 6: Final answer
   x = 6,724,932.81