Finding the Fourth Proportional to 20,057,848.56, 30,098,725.20 and 7,279,349.31

Step by Step Solution

1. Step 1: Write the proportion equation
   20,057,848.56 : 30,098,725.20 = 7,279,349.31 : x
2. Step 2: Convert to fraction form
   20,057,848.56/30,098,725.20 = 7,279,349.31/x
3. Step 3: Cross multiply
   20,057,848.56x = 30,098,725.20 × 7,279,349.31
4. Step 4: Simplify right side
   20,057,848.56x = 219,099,134,516,499.59
5. Step 5: Solve for x
   x = 219,099,134,516,499.59/20,057,848.56
6. Step 6: Final answer
   x = 10,923,361.69