Finding the Fourth Proportional to 78,282.60, 108,030.42 and 42,472.68

Step by Step Solution

1. Step 1: Write the proportion equation
   78,282.60 : 108,030.42 = 42,472.68 : x
2. Step 2: Convert to fraction form
   78,282.60/108,030.42 = 42,472.68/x
3. Step 3: Cross multiply
   78,282.60x = 108,030.42 × 42,472.68
4. Step 4: Simplify right side
   78,282.60x = 4,588,341,458.93
5. Step 5: Solve for x
   x = 4,588,341,458.93/78,282.60
6. Step 6: Final answer
   x = 58,612.53