Finding the Fourth Proportional to 10,521,008.74, 14,529,019.42 and 9,947,831.54

Step by Step Solution

1. Step 1: Write the proportion equation
   10,521,008.74 : 14,529,019.42 = 9,947,831.54 : x
2. Step 2: Convert to fraction form
   10,521,008.74/14,529,019.42 = 9,947,831.54/x
3. Step 3: Cross multiply
   10,521,008.74x = 14,529,019.42 × 9,947,831.54
4. Step 4: Simplify right side
   10,521,008.74x = 144,532,237,631,548.50
5. Step 5: Solve for x
   x = 144,532,237,631,548.50/10,521,008.74
6. Step 6: Final answer
   x = 13,737,488.60