Finding the Fourth Proportional to 11,300,705.15, 16,953,903.88 and 3,213,680.79

Step by Step Solution

1. Step 1: Write the proportion equation
   11,300,705.15 : 16,953,903.88 = 3,213,680.79 : x
2. Step 2: Convert to fraction form
   11,300,705.15/16,953,903.88 = 3,213,680.79/x
3. Step 3: Cross multiply
   11,300,705.15x = 16,953,903.88 × 3,213,680.79
4. Step 4: Simplify right side
   11,300,705.15x = 54,484,435,144,256.73
5. Step 5: Solve for x
   x = 54,484,435,144,256.73/11,300,705.15
6. Step 6: Final answer
   x = 4,821,330.56