Finding the Fourth Proportional to 113,311.98, 170,642.50 and 98,697.42

Step by Step Solution

1. Step 1: Write the proportion equation
   113,311.98 : 170,642.50 = 98,697.42 : x
2. Step 2: Convert to fraction form
   113,311.98/170,642.50 = 98,697.42/x
3. Step 3: Cross multiply
   113,311.98x = 170,642.50 × 98,697.42
4. Step 4: Simplify right side
   113,311.98x = 16,841,974,492.35
5. Step 5: Solve for x
   x = 16,841,974,492.35/113,311.98
6. Step 6: Final answer
   x = 148,633.66