Finding the Fourth Proportional to 78,536.69, 108,377.47 and 42,726.84

Step by Step Solution

1. Step 1: Write the proportion equation
   78,536.69 : 108,377.47 = 42,726.84 : x
2. Step 2: Convert to fraction form
   78,536.69/108,377.47 = 42,726.84/x
3. Step 3: Cross multiply
   78,536.69x = 108,377.47 × 42,726.84
4. Step 4: Simplify right side
   78,536.69x = 4,630,626,956.74
5. Step 5: Solve for x
   x = 4,630,626,956.74/78,536.69
6. Step 6: Final answer
   x = 58,961.32