Finding the Fourth Proportional to 76,887.36, 106,105.32 and 42,895.56

Step by Step Solution

1. Step 1: Write the proportion equation
   76,887.36 : 106,105.32 = 42,895.56 : x
2. Step 2: Convert to fraction form
   76,887.36/106,105.32 = 42,895.56/x
3. Step 3: Cross multiply
   76,887.36x = 106,105.32 × 42,895.56
4. Step 4: Simplify right side
   76,887.36x = 4,551,447,120.38
5. Step 5: Solve for x
   x = 4,551,447,120.38/76,887.36
6. Step 6: Final answer
   x = 59,196.30