Finding the Fourth Proportional to 76,271.25, 105,254.34 and 42,737.25

Step by Step Solution

1. Step 1: Write the proportion equation
   76,271.25 : 105,254.34 = 42,737.25 : x
2. Step 2: Convert to fraction form
   76,271.25/105,254.34 = 42,737.25/x
3. Step 3: Cross multiply
   76,271.25x = 105,254.34 × 42,737.25
4. Step 4: Simplify right side
   76,271.25x = 4,498,281,276.60
5. Step 5: Solve for x
   x = 4,498,281,276.60/76,271.25
6. Step 6: Final answer
   x = 58,977.41