Finding the Fourth Proportional to 12,361,819.89, 17,058,988.20 and 6,855,180.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,361,819.89 : 17,058,988.20 = 6,855,180.72 : x
2. Step 2: Convert to fraction form
   12,361,819.89/17,058,988.20 = 6,855,180.72/x
3. Step 3: Cross multiply
   12,361,819.89x = 17,058,988.20 × 6,855,180.72
4. Step 4: Simplify right side
   12,361,819.89x = 116,942,447,011,347.50
5. Step 5: Solve for x
   x = 116,942,447,011,347.50/12,361,819.89
6. Step 6: Final answer
   x = 9,459,970.14