Finding the Fourth Proportional to 52,168,789.56, 71,990,118.54 and 28,962,423.21

Step by Step Solution

1. Step 1: Write the proportion equation
   52,168,789.56 : 71,990,118.54 = 28,962,423.21 : x
2. Step 2: Convert to fraction form
   52,168,789.56/71,990,118.54 = 28,962,423.21/x
3. Step 3: Cross multiply
   52,168,789.56x = 71,990,118.54 × 28,962,423.21
4. Step 4: Simplify right side
   52,168,789.56x = 2,085,008,280,363,510.50
5. Step 5: Solve for x
   x = 2,085,008,280,363,510.50/52,168,789.56
6. Step 6: Final answer
   x = 39,966,583.43