Finding the Fourth Proportional to 21,978,651.20, 32,927,532 and 13,779,734.08

Step by Step Solution

1. Step 1: Write the proportion equation
   21,978,651.20 : 32,927,532 = 13,779,734.08 : x
2. Step 2: Convert to fraction form
   21,978,651.20/32,927,532 = 13,779,734.08/x
3. Step 3: Cross multiply
   21,978,651.20x = 32,927,532 × 13,779,734.08
4. Step 4: Simplify right side
   21,978,651.20x = 453,732,634,870,690.56
5. Step 5: Solve for x
   x = 453,732,634,870,690.56/21,978,651.20
6. Step 6: Final answer
   x = 20,644,243.85