Finding the Fourth Proportional to 78,465.94, 108,281.71 and 42,656.85

Step by Step Solution

1. Step 1: Write the proportion equation
   78,465.94 : 108,281.71 = 42,656.85 : x
2. Step 2: Convert to fraction form
   78,465.94/108,281.71 = 42,656.85/x
3. Step 3: Cross multiply
   78,465.94x = 108,281.71 × 42,656.85
4. Step 4: Simplify right side
   78,465.94x = 4,618,956,447.93
5. Step 5: Solve for x
   x = 4,618,956,447.93/78,465.94
6. Step 6: Final answer
   x = 58,865.75