Finding the Fourth Proportional to 131,018.90, 196,526.52 and 74,738.88

Step by Step Solution

1. Step 1: Write the proportion equation
   131,018.90 : 196,526.52 = 74,738.88 : x
2. Step 2: Convert to fraction form
   131,018.90/196,526.52 = 74,738.88/x
3. Step 3: Cross multiply
   131,018.90x = 196,526.52 × 74,738.88
4. Step 4: Simplify right side
   131,018.90x = 14,688,171,995.10
5. Step 5: Solve for x
   x = 14,688,171,995.10/131,018.90
6. Step 6: Final answer
   x = 112,107.28