Finding the Fourth Proportional to 12,973,454.15, 17,899,087.72 and 8,329,840.79

Step by Step Solution

1. Step 1: Write the proportion equation
   12,973,454.15 : 17,899,087.72 = 8,329,840.79 : x
2. Step 2: Convert to fraction form
   12,973,454.15/17,899,087.72 = 8,329,840.79/x
3. Step 3: Cross multiply
   12,973,454.15x = 17,899,087.72 × 8,329,840.79
4. Step 4: Simplify right side
   12,973,454.15x = 149,096,550,993,844.09
5. Step 5: Solve for x
   x = 149,096,550,993,844.09/12,973,454.15
6. Step 6: Final answer
   x = 11,492,432.88