Finding the Fourth Proportional to 9,306,906.56, 12,839,333.32 and 5,437,688

Step by Step Solution

1. Step 1: Write the proportion equation
   9,306,906.56 : 12,839,333.32 = 5,437,688 : x
2. Step 2: Convert to fraction form
   9,306,906.56/12,839,333.32 = 5,437,688/x
3. Step 3: Cross multiply
   9,306,906.56x = 12,839,333.32 × 5,437,688
4. Step 4: Simplify right side
   9,306,906.56x = 69,816,288,722,164.16
5. Step 5: Solve for x
   x = 69,816,288,722,164.16/9,306,906.56
6. Step 6: Final answer
   x = 7,501,556.86