Finding the Fourth Proportional to 28,320,968.34, 42,469,740.72 and 8,883,711

Step by Step Solution

1. Step 1: Write the proportion equation
   28,320,968.34 : 42,469,740.72 = 8,883,711 : x
2. Step 2: Convert to fraction form
   28,320,968.34/42,469,740.72 = 8,883,711/x
3. Step 3: Cross multiply
   28,320,968.34x = 42,469,740.72 × 8,883,711
4. Step 4: Simplify right side
   28,320,968.34x = 377,288,902,801,411.94
5. Step 5: Solve for x
   x = 377,288,902,801,411.94/28,320,968.34
6. Step 6: Final answer
   x = 13,321,892.75