Finding the Fourth Proportional to 12,979,158.88, 19,455,009.24 and 4,888,634

Step by Step Solution

1. Step 1: Write the proportion equation
   12,979,158.88 : 19,455,009.24 = 4,888,634 : x
2. Step 2: Convert to fraction form
   12,979,158.88/19,455,009.24 = 4,888,634/x
3. Step 3: Cross multiply
   12,979,158.88x = 19,455,009.24 × 4,888,634
4. Step 4: Simplify right side
   12,979,158.88x = 95,108,419,640,978.16
5. Step 5: Solve for x
   x = 95,108,419,640,978.16/12,979,158.88
6. Step 6: Final answer
   x = 7,327,779.91