Finding the Fourth Proportional to 71,886,665.62, 99,192,513.09 and 40,942,890.10

Step by Step Solution

1. Step 1: Write the proportion equation
   71,886,665.62 : 99,192,513.09 = 40,942,890.10 : x
2. Step 2: Convert to fraction form
   71,886,665.62/99,192,513.09 = 40,942,890.10/x
3. Step 3: Cross multiply
   71,886,665.62x = 99,192,513.09 × 40,942,890.10
4. Step 4: Simplify right side
   71,886,665.62x = 4,061,228,162,186,681.50
5. Step 5: Solve for x
   x = 4,061,228,162,186,681.50/71,886,665.62
6. Step 6: Final answer
   x = 56,494,874.64