Finding the Fourth Proportional to 16,978,147.84, 25,476,069.12 and 7,520,320

Step by Step Solution

1. Step 1: Write the proportion equation
   16,978,147.84 : 25,476,069.12 = 7,520,320 : x
2. Step 2: Convert to fraction form
   16,978,147.84/25,476,069.12 = 7,520,320/x
3. Step 3: Cross multiply
   16,978,147.84x = 25,476,069.12 × 7,520,320
4. Step 4: Simplify right side
   16,978,147.84x = 191,588,192,124,518.41
5. Step 5: Solve for x
   x = 191,588,192,124,518.41/16,978,147.84
6. Step 6: Final answer
   x = 11,284,398.86