Finding the Fourth Proportional to 30,951,108.72, 42,667,513.74 and 21,629,738.52

Step by Step Solution

1. Step 1: Write the proportion equation
   30,951,108.72 : 42,667,513.74 = 21,629,738.52 : x
2. Step 2: Convert to fraction form
   30,951,108.72/42,667,513.74 = 21,629,738.52/x
3. Step 3: Cross multiply
   30,951,108.72x = 42,667,513.74 × 21,629,738.52
4. Step 4: Simplify right side
   30,951,108.72x = 922,887,165,494,707.25
5. Step 5: Solve for x
   x = 922,887,165,494,707.25/30,951,108.72
6. Step 6: Final answer
   x = 29,817,580.17