Finding the Fourth Proportional to 76,895.16, 106,116.12 and 42,906.72

Step by Step Solution

1. Step 1: Write the proportion equation
   76,895.16 : 106,116.12 = 42,906.72 : x
2. Step 2: Convert to fraction form
   76,895.16/106,116.12 = 42,906.72/x
3. Step 3: Cross multiply
   76,895.16x = 106,116.12 × 42,906.72
4. Step 4: Simplify right side
   76,895.16x = 4,553,094,648.33
5. Step 5: Solve for x
   x = 4,553,094,648.33/76,895.16
6. Step 6: Final answer
   x = 59,211.72