Finding the Fourth Proportional to 9,218,458.37, 12,721,470.54 and 5,088,488.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,218,458.37 : 12,721,470.54 = 5,088,488.42 : x
2. Step 2: Convert to fraction form
   9,218,458.37/12,721,470.54 = 5,088,488.42/x
3. Step 3: Cross multiply
   9,218,458.37x = 12,721,470.54 × 5,088,488.42
4. Step 4: Simplify right side
   9,218,458.37x = 64,733,055,533,726.60
5. Step 5: Solve for x
   x = 64,733,055,533,726.60/9,218,458.37
6. Step 6: Final answer
   x = 7,022,112.91