Finding the Fourth Proportional to 9,873,978.06, 14,805,641.61 and 4,479,685.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,873,978.06 : 14,805,641.61 = 4,479,685.05 : x
2. Step 2: Convert to fraction form
   9,873,978.06/14,805,641.61 = 4,479,685.05/x
3. Step 3: Cross multiply
   9,873,978.06x = 14,805,641.61 × 4,479,685.05
4. Step 4: Simplify right side
   9,873,978.06x = 66,324,611,375,974.92
5. Step 5: Solve for x
   x = 66,324,611,375,974.92/9,873,978.06
6. Step 6: Final answer
   x = 6,717,111.48