Finding the Fourth Proportional to 12,779,229.72, 17,635,422.42 and 6,978,051.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,779,229.72 : 17,635,422.42 = 6,978,051.96 : x
2. Step 2: Convert to fraction form
   12,779,229.72/17,635,422.42 = 6,978,051.96/x
3. Step 3: Cross multiply
   12,779,229.72x = 17,635,422.42 × 6,978,051.96
4. Step 4: Simplify right side
   12,779,229.72x = 123,060,893,983,308.95
5. Step 5: Solve for x
   x = 123,060,893,983,308.95/12,779,229.72
6. Step 6: Final answer
   x = 9,629,758.34