Finding the Fourth Proportional to 77,634.56, 107,105.28 and 47,774.72

Step by Step Solution

1. Step 1: Write the proportion equation
   77,634.56 : 107,105.28 = 47,774.72 : x
2. Step 2: Convert to fraction form
   77,634.56/107,105.28 = 47,774.72/x
3. Step 3: Cross multiply
   77,634.56x = 107,105.28 × 47,774.72
4. Step 4: Simplify right side
   77,634.56x = 5,116,924,762.52
5. Step 5: Solve for x
   x = 5,116,924,762.52/77,634.56
6. Step 6: Final answer
   x = 65,910.40