Finding the Fourth Proportional to 76,921.16, 106,151.19 and 42,465.89

Step by Step Solution

1. Step 1: Write the proportion equation
   76,921.16 : 106,151.19 = 42,465.89 : x
2. Step 2: Convert to fraction form
   76,921.16/106,151.19 = 42,465.89/x
3. Step 3: Cross multiply
   76,921.16x = 106,151.19 × 42,465.89
4. Step 4: Simplify right side
   76,921.16x = 4,507,804,757.91
5. Step 5: Solve for x
   x = 4,507,804,757.91/76,921.16
6. Step 6: Final answer
   x = 58,602.92