Finding the Fourth Proportional to 100,788.31, 151,196.36 and 34,210.56

Step by Step Solution

1. Step 1: Write the proportion equation
   100,788.31 : 151,196.36 = 34,210.56 : x
2. Step 2: Convert to fraction form
   100,788.31/151,196.36 = 34,210.56/x
3. Step 3: Cross multiply
   100,788.31x = 151,196.36 × 34,210.56
4. Step 4: Simplify right side
   100,788.31x = 5,172,512,145.56
5. Step 5: Solve for x
   x = 5,172,512,145.56/100,788.31
6. Step 6: Final answer
   x = 51,320.56