Finding the Fourth Proportional to 78,423.54, 108,225.14 and 42,613.55

Step by Step Solution

1. Step 1: Write the proportion equation
   78,423.54 : 108,225.14 = 42,613.55 : x
2. Step 2: Convert to fraction form
   78,423.54/108,225.14 = 42,613.55/x
3. Step 3: Cross multiply
   78,423.54x = 108,225.14 × 42,613.55
4. Step 4: Simplify right side
   78,423.54x = 4,611,857,066.30
5. Step 5: Solve for x
   x = 4,611,857,066.30/78,423.54
6. Step 6: Final answer
   x = 58,807.05