Finding the Fourth Proportional to 109,423.35, 151,128.78 and 73,551.09

Step by Step Solution

1. Step 1: Write the proportion equation
   109,423.35 : 151,128.78 = 73,551.09 : x
2. Step 2: Convert to fraction form
   109,423.35/151,128.78 = 73,551.09/x
3. Step 3: Cross multiply
   109,423.35x = 151,128.78 × 73,551.09
4. Step 4: Simplify right side
   109,423.35x = 11,115,686,499.37
5. Step 5: Solve for x
   x = 11,115,686,499.37/109,423.35
6. Step 6: Final answer
   x = 101,584.23