Finding the Fourth Proportional to 83,518.86, 115,191 and 51,705.30

Step by Step Solution

1. Step 1: Write the proportion equation
   83,518.86 : 115,191 = 51,705.30 : x
2. Step 2: Convert to fraction form
   83,518.86/115,191 = 51,705.30/x
3. Step 3: Cross multiply
   83,518.86x = 115,191 × 51,705.30
4. Step 4: Simplify right side
   83,518.86x = 5,955,985,212.30
5. Step 5: Solve for x
   x = 5,955,985,212.30/83,518.86
6. Step 6: Final answer
   x = 71,313.06