Finding the Fourth Proportional to 11,005,123.32, 16,507,668.78 and 7,217,718.84

Step by Step Solution

1. Step 1: Write the proportion equation
   11,005,123.32 : 16,507,668.78 = 7,217,718.84 : x
2. Step 2: Convert to fraction form
   11,005,123.32/16,507,668.78 = 7,217,718.84/x
3. Step 3: Cross multiply
   11,005,123.32x = 16,507,668.78 × 7,217,718.84
4. Step 4: Simplify right side
   11,005,123.32x = 119,147,711,957,885.81
5. Step 5: Solve for x
   x = 119,147,711,957,885.81/11,005,123.32
6. Step 6: Final answer
   x = 10,826,567.64