Finding the Fourth Proportional to 76,558.38, 105,656.22 and 42,573

Step by Step Solution

1. Step 1: Write the proportion equation
   76,558.38 : 105,656.22 = 42,573 : x
2. Step 2: Convert to fraction form
   76,558.38/105,656.22 = 42,573/x
3. Step 3: Cross multiply
   76,558.38x = 105,656.22 × 42,573
4. Step 4: Simplify right side
   76,558.38x = 4,498,102,254.06
5. Step 5: Solve for x
   x = 4,498,102,254.06/76,558.38
6. Step 6: Final answer
   x = 58,753.88