Finding the Fourth Proportional to 78,403.46, 108,196.98 and 42,593.18

Step by Step Solution

1. Step 1: Write the proportion equation
   78,403.46 : 108,196.98 = 42,593.18 : x
2. Step 2: Convert to fraction form
   78,403.46/108,196.98 = 42,593.18/x
3. Step 3: Cross multiply
   78,403.46x = 108,196.98 × 42,593.18
4. Step 4: Simplify right side
   78,403.46x = 4,608,453,444.60
5. Step 5: Solve for x
   x = 4,608,453,444.60/78,403.46
6. Step 6: Final answer
   x = 58,778.70