Finding the Fourth Proportional to 10,389,764.72, 15,588,780.51 and 3,998,300.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,389,764.72 : 15,588,780.51 = 3,998,300.96 : x
2. Step 2: Convert to fraction form
   10,389,764.72/15,588,780.51 = 3,998,300.96/x
3. Step 3: Cross multiply
   10,389,764.72x = 15,588,780.51 × 3,998,300.96
4. Step 4: Simplify right side
   10,389,764.72x = 62,328,636,078,362.29
5. Step 5: Solve for x
   x = 62,328,636,078,362.29/10,389,764.72
6. Step 6: Final answer
   x = 5,999,042.11