Finding the Fourth Proportional to 79,091.55, 109,146 and 42,792.87

Step by Step Solution

1. Step 1: Write the proportion equation
   79,091.55 : 109,146 = 42,792.87 : x
2. Step 2: Convert to fraction form
   79,091.55/109,146 = 42,792.87/x
3. Step 3: Cross multiply
   79,091.55x = 109,146 × 42,792.87
4. Step 4: Simplify right side
   79,091.55x = 4,670,670,589.02
5. Step 5: Solve for x
   x = 4,670,670,589.02/79,091.55
6. Step 6: Final answer
   x = 59,053.98