Finding the Fourth Proportional to 151,493.54, 209,051.68 and 83,507

Step by Step Solution

1. Step 1: Write the proportion equation
   151,493.54 : 209,051.68 = 83,507 : x
2. Step 2: Convert to fraction form
   151,493.54/209,051.68 = 83,507/x
3. Step 3: Cross multiply
   151,493.54x = 209,051.68 × 83,507
4. Step 4: Simplify right side
   151,493.54x = 17,457,278,641.76
5. Step 5: Solve for x
   x = 17,457,278,641.76/151,493.54
6. Step 6: Final answer
   x = 115,234.48