Finding the Fourth Proportional to 100,903.86, 151,354.17 and 34,390.31

Step by Step Solution

1. Step 1: Write the proportion equation
   100,903.86 : 151,354.17 = 34,390.31 : x
2. Step 2: Convert to fraction form
   100,903.86/151,354.17 = 34,390.31/x
3. Step 3: Cross multiply
   100,903.86x = 151,354.17 × 34,390.31
4. Step 4: Simplify right side
   100,903.86x = 5,205,116,069.32
5. Step 5: Solve for x
   x = 5,205,116,069.32/100,903.86
6. Step 6: Final answer
   x = 51,584.91