Finding the Fourth Proportional to 64,786,082.88, 89,405,856.96 and 38,682,881.76

Step by Step Solution

1. Step 1: Write the proportion equation
   64,786,082.88 : 89,405,856.96 = 38,682,881.76 : x
2. Step 2: Convert to fraction form
   64,786,082.88/89,405,856.96 = 38,682,881.76/x
3. Step 3: Cross multiply
   64,786,082.88x = 89,405,856.96 × 38,682,881.76
4. Step 4: Simplify right side
   64,786,082.88x = 3,458,476,193,435,152.50
5. Step 5: Solve for x
   x = 3,458,476,193,435,152.50/64,786,082.88
6. Step 6: Final answer
   x = 53,383,011.28