Finding the Fourth Proportional to 76,774.66, 105,935.01 and 42,782.30

Step by Step Solution

1. Step 1: Write the proportion equation
   76,774.66 : 105,935.01 = 42,782.30 : x
2. Step 2: Convert to fraction form
   76,774.66/105,935.01 = 42,782.30/x
3. Step 3: Cross multiply
   76,774.66x = 105,935.01 × 42,782.30
4. Step 4: Simplify right side
   76,774.66x = 4,532,143,085.47
5. Step 5: Solve for x
   x = 4,532,143,085.47/76,774.66
6. Step 6: Final answer
   x = 59,031.76