Finding the Fourth Proportional to 98,086.87, 135,354 and 55,063.18

Step by Step Solution

1. Step 1: Write the proportion equation
   98,086.87 : 135,354 = 55,063.18 : x
2. Step 2: Convert to fraction form
   98,086.87/135,354 = 55,063.18/x
3. Step 3: Cross multiply
   98,086.87x = 135,354 × 55,063.18
4. Step 4: Simplify right side
   98,086.87x = 7,453,021,665.72
5. Step 5: Solve for x
   x = 7,453,021,665.72/98,086.87
6. Step 6: Final answer
   x = 75,983.89