Finding the Fourth Proportional to 78,423.47, 108,224.18 and 42,613.48

Step by Step Solution

1. Step 1: Write the proportion equation
   78,423.47 : 108,224.18 = 42,613.48 : x
2. Step 2: Convert to fraction form
   78,423.47/108,224.18 = 42,613.48/x
3. Step 3: Cross multiply
   78,423.47x = 108,224.18 × 42,613.48
4. Step 4: Simplify right side
   78,423.47x = 4,611,808,688.13
5. Step 5: Solve for x
   x = 4,611,808,688.13/78,423.47
6. Step 6: Final answer
   x = 58,806.49