Finding the Fourth Proportional to 21,071,478.72, 31,592,693.52 and 8,293,450.56

Step by Step Solution

1. Step 1: Write the proportion equation
   21,071,478.72 : 31,592,693.52 = 8,293,450.56 : x
2. Step 2: Convert to fraction form
   21,071,478.72/31,592,693.52 = 8,293,450.56/x
3. Step 3: Cross multiply
   21,071,478.72x = 31,592,693.52 × 8,293,450.56
4. Step 4: Simplify right side
   21,071,478.72x = 262,012,441,765,352.34
5. Step 5: Solve for x
   x = 262,012,441,765,352.34/21,071,478.72
6. Step 6: Final answer
   x = 12,434,459.17