Finding the Fourth Proportional to 9,269,632.98, 12,791,647.80 and 5,139,831.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,269,632.98 : 12,791,647.80 = 5,139,831.96 : x
2. Step 2: Convert to fraction form
   9,269,632.98/12,791,647.80 = 5,139,831.96/x
3. Step 3: Cross multiply
   9,269,632.98x = 12,791,647.80 × 5,139,831.96
4. Step 4: Simplify right side
   9,269,632.98x = 65,746,920,183,503.69
5. Step 5: Solve for x
   x = 65,746,920,183,503.69/9,269,632.98
6. Step 6: Final answer
   x = 7,092,720.97