Finding the Fourth Proportional to 77,400, 116,105.49 and 30,652.88

Step by Step Solution

1. Step 1: Write the proportion equation
   77,400 : 116,105.49 = 30,652.88 : x
2. Step 2: Convert to fraction form
   77,400/116,105.49 = 30,652.88/x
3. Step 3: Cross multiply
   77,400x = 116,105.49 × 30,652.88
4. Step 4: Simplify right side
   77,400x = 3,558,967,071.78
5. Step 5: Solve for x
   x = 3,558,967,071.78/77,400
6. Step 6: Final answer
   x = 45,981.49