Finding the Fourth Proportional to 20,928,300.48, 28,881,064.53 and 12,108,953.97

Step by Step Solution

1. Step 1: Write the proportion equation
   20,928,300.48 : 28,881,064.53 = 12,108,953.97 : x
2. Step 2: Convert to fraction form
   20,928,300.48/28,881,064.53 = 12,108,953.97/x
3. Step 3: Cross multiply
   20,928,300.48x = 28,881,064.53 × 12,108,953.97
4. Step 4: Simplify right side
   20,928,300.48x = 349,719,480,998,369.69
5. Step 5: Solve for x
   x = 349,719,480,998,369.69/20,928,300.48
6. Step 6: Final answer
   x = 16,710,362.19