Finding the Fourth Proportional to 76,292.37, 105,279.25 and 42,298.87

Step by Step Solution

1. Step 1: Write the proportion equation
   76,292.37 : 105,279.25 = 42,298.87 : x
2. Step 2: Convert to fraction form
   76,292.37/105,279.25 = 42,298.87/x
3. Step 3: Cross multiply
   76,292.37x = 105,279.25 × 42,298.87
4. Step 4: Simplify right side
   76,292.37x = 4,453,193,309.45
5. Step 5: Solve for x
   x = 4,453,193,309.45/76,292.37
6. Step 6: Final answer
   x = 58,370.10