Finding the Fourth Proportional to 103,630.06, 155,447.72 and 77,500.68

Step by Step Solution

1. Step 1: Write the proportion equation
   103,630.06 : 155,447.72 = 77,500.68 : x
2. Step 2: Convert to fraction form
   103,630.06/155,447.72 = 77,500.68/x
3. Step 3: Cross multiply
   103,630.06x = 155,447.72 × 77,500.68
4. Step 4: Simplify right side
   103,630.06x = 12,047,304,004.45
5. Step 5: Solve for x
   x = 12,047,304,004.45/103,630.06
6. Step 6: Final answer
   x = 116,252.99