Finding the Fourth Proportional to 7,870,657.68, 10,855,725.98 and 5,216,705.37

Step by Step Solution

1. Step 1: Write the proportion equation
   7,870,657.68 : 10,855,725.98 = 5,216,705.37 : x
2. Step 2: Convert to fraction form
   7,870,657.68/10,855,725.98 = 5,216,705.37/x
3. Step 3: Cross multiply
   7,870,657.68x = 10,855,725.98 × 5,216,705.37
4. Step 4: Simplify right side
   7,870,657.68x = 56,631,124,055,295.59
5. Step 5: Solve for x
   x = 56,631,124,055,295.59/7,870,657.68
6. Step 6: Final answer
   x = 7,195,221.33