Finding the Fourth Proportional to 45,939.88, 63,363.90 and 42,175

Step by Step Solution

1. Step 1: Write the proportion equation
   45,939.88 : 63,363.90 = 42,175 : x
2. Step 2: Convert to fraction form
   45,939.88/63,363.90 = 42,175/x
3. Step 3: Cross multiply
   45,939.88x = 63,363.90 × 42,175
4. Step 4: Simplify right side
   45,939.88x = 2,672,372,482.50
5. Step 5: Solve for x
   x = 2,672,372,482.50/45,939.88
6. Step 6: Final answer
   x = 58,171.08