Finding the Fourth Proportional to 78,423.92, 108,225.69 and 42,613.93

Step by Step Solution

1. Step 1: Write the proportion equation
   78,423.92 : 108,225.69 = 42,613.93 : x
2. Step 2: Convert to fraction form
   78,423.92/108,225.69 = 42,613.93/x
3. Step 3: Cross multiply
   78,423.92x = 108,225.69 × 42,613.93
4. Step 4: Simplify right side
   78,423.92x = 4,611,921,888.66
5. Step 5: Solve for x
   x = 4,611,921,888.66/78,423.92
6. Step 6: Final answer
   x = 58,807.59