Finding the Fourth Proportional to 67,264.72, 92,823.96 and 42,128.08

Step by Step Solution

1. Step 1: Write the proportion equation
   67,264.72 : 92,823.96 = 42,128.08 : x
2. Step 2: Convert to fraction form
   67,264.72/92,823.96 = 42,128.08/x
3. Step 3: Cross multiply
   67,264.72x = 92,823.96 × 42,128.08
4. Step 4: Simplify right side
   67,264.72x = 3,910,495,212.80
5. Step 5: Solve for x
   x = 3,910,495,212.80/67,264.72
6. Step 6: Final answer
   x = 58,135.90