Finding the Fourth Proportional to 77,636.56, 107,108.04 and 47,776.72

Step by Step Solution

1. Step 1: Write the proportion equation
   77,636.56 : 107,108.04 = 47,776.72 : x
2. Step 2: Convert to fraction form
   77,636.56/107,108.04 = 47,776.72/x
3. Step 3: Cross multiply
   77,636.56x = 107,108.04 × 47,776.72
4. Step 4: Simplify right side
   77,636.56x = 5,117,270,836.83
5. Step 5: Solve for x
   x = 5,117,270,836.83/77,636.56
6. Step 6: Final answer
   x = 65,913.16