Finding the Fourth Proportional to 28,257,874.24, 42,393,132.24 and 10,306,978.24

Step by Step Solution

1. Step 1: Write the proportion equation
   28,257,874.24 : 42,393,132.24 = 10,306,978.24 : x
2. Step 2: Convert to fraction form
   28,257,874.24/42,393,132.24 = 10,306,978.24/x
3. Step 3: Cross multiply
   28,257,874.24x = 42,393,132.24 × 10,306,978.24
4. Step 4: Simplify right side
   28,257,874.24x = 436,945,091,523,122.50
5. Step 5: Solve for x
   x = 436,945,091,523,122.50/28,257,874.24
6. Step 6: Final answer
   x = 15,462,772.88