Finding the Fourth Proportional to 78,276.16, 108,018.12 and 42,464.92

Step by Step Solution

1. Step 1: Write the proportion equation
   78,276.16 : 108,018.12 = 42,464.92 : x
2. Step 2: Convert to fraction form
   78,276.16/108,018.12 = 42,464.92/x
3. Step 3: Cross multiply
   78,276.16x = 108,018.12 × 42,464.92
4. Step 4: Simplify right side
   78,276.16x = 4,586,980,824.35
5. Step 5: Solve for x
   x = 4,586,980,824.35/78,276.16
6. Step 6: Final answer
   x = 58,599.97