Finding the Fourth Proportional to 147,618.50, 221,279.72 and 76,501.31

Step by Step Solution

1. Step 1: Write the proportion equation
   147,618.50 : 221,279.72 = 76,501.31 : x
2. Step 2: Convert to fraction form
   147,618.50/221,279.72 = 76,501.31/x
3. Step 3: Cross multiply
   147,618.50x = 221,279.72 × 76,501.31
4. Step 4: Simplify right side
   147,618.50x = 16,928,186,967.53
5. Step 5: Solve for x
   x = 16,928,186,967.53/147,618.50
6. Step 6: Final answer
   x = 114,675.24