Finding the Fourth Proportional to 79,166.95, 109,250.54 and 42,868.78

Step by Step Solution

1. Step 1: Write the proportion equation
   79,166.95 : 109,250.54 = 42,868.78 : x
2. Step 2: Convert to fraction form
   79,166.95/109,250.54 = 42,868.78/x
3. Step 3: Cross multiply
   79,166.95x = 109,250.54 × 42,868.78
4. Step 4: Simplify right side
   79,166.95x = 4,683,437,364.14
5. Step 5: Solve for x
   x = 4,683,437,364.14/79,166.95
6. Step 6: Final answer
   x = 59,159.00