Finding the Fourth Proportional to 78,146.34, 107,841.82 and 42,336.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,146.34 : 107,841.82 = 42,336.50 : x
2. Step 2: Convert to fraction form
   78,146.34/107,841.82 = 42,336.50/x
3. Step 3: Cross multiply
   78,146.34x = 107,841.82 × 42,336.50
4. Step 4: Simplify right side
   78,146.34x = 4,565,645,212.43
5. Step 5: Solve for x
   x = 4,565,645,212.43/78,146.34
6. Step 6: Final answer
   x = 58,424.30