Finding the Fourth Proportional to 9,861,782.94, 14,720,456.52 and 8,696,940.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,861,782.94 : 14,720,456.52 = 8,696,940.30 : x
2. Step 2: Convert to fraction form
   9,861,782.94/14,720,456.52 = 8,696,940.30/x
3. Step 3: Cross multiply
   9,861,782.94x = 14,720,456.52 × 8,696,940.30
4. Step 4: Simplify right side
   9,861,782.94x = 128,022,931,543,185.77
5. Step 5: Solve for x
   x = 128,022,931,543,185.77/9,861,782.94
6. Step 6: Final answer
   x = 12,981,722.71