Finding the Fourth Proportional to 131,522.10, 197,153.55 and 64,907.70

Step by Step Solution

1. Step 1: Write the proportion equation
   131,522.10 : 197,153.55 = 64,907.70 : x
2. Step 2: Convert to fraction form
   131,522.10/197,153.55 = 64,907.70/x
3. Step 3: Cross multiply
   131,522.10x = 197,153.55 × 64,907.70
4. Step 4: Simplify right side
   131,522.10x = 12,796,783,477.34
5. Step 5: Solve for x
   x = 12,796,783,477.34/131,522.10
6. Step 6: Final answer
   x = 97,297.59