Finding the Fourth Proportional to 76,460.37, 105,515.31 and 42,926.37

Step by Step Solution

1. Step 1: Write the proportion equation
   76,460.37 : 105,515.31 = 42,926.37 : x
2. Step 2: Convert to fraction form
   76,460.37/105,515.31 = 42,926.37/x
3. Step 3: Cross multiply
   76,460.37x = 105,515.31 × 42,926.37
4. Step 4: Simplify right side
   76,460.37x = 4,529,388,495.52
5. Step 5: Solve for x
   x = 4,529,388,495.52/76,460.37
6. Step 6: Final answer
   x = 59,238.38