Finding the Fourth Proportional to 42,105.12, 58,049.20 and 34,907.88

Step by Step Solution

1. Step 1: Write the proportion equation
   42,105.12 : 58,049.20 = 34,907.88 : x
2. Step 2: Convert to fraction form
   42,105.12/58,049.20 = 34,907.88/x
3. Step 3: Cross multiply
   42,105.12x = 58,049.20 × 34,907.88
4. Step 4: Simplify right side
   42,105.12x = 2,026,374,507.70
5. Step 5: Solve for x
   x = 2,026,374,507.70/42,105.12
6. Step 6: Final answer
   x = 48,126.56