Finding the Fourth Proportional to 45,942.88, 63,368.04 and 42,178

Step by Step Solution

1. Step 1: Write the proportion equation
   45,942.88 : 63,368.04 = 42,178 : x
2. Step 2: Convert to fraction form
   45,942.88/63,368.04 = 42,178/x
3. Step 3: Cross multiply
   45,942.88x = 63,368.04 × 42,178
4. Step 4: Simplify right side
   45,942.88x = 2,672,737,191.12
5. Step 5: Solve for x
   x = 2,672,737,191.12/45,942.88
6. Step 6: Final answer
   x = 58,175.22