Finding the Fourth Proportional to 77,498.56, 106,920.52 and 50,656.56

Step by Step Solution

1. Step 1: Write the proportion equation
   77,498.56 : 106,920.52 = 50,656.56 : x
2. Step 2: Convert to fraction form
   77,498.56/106,920.52 = 50,656.56/x
3. Step 3: Cross multiply
   77,498.56x = 106,920.52 × 50,656.56
4. Step 4: Simplify right side
   77,498.56x = 5,416,225,736.61
5. Step 5: Solve for x
   x = 5,416,225,736.61/77,498.56
6. Step 6: Final answer
   x = 69,888.08