Finding the Fourth Proportional to 76,532.76, 105,617.16 and 42,077.07

Step by Step Solution

1. Step 1: Write the proportion equation
   76,532.76 : 105,617.16 = 42,077.07 : x
2. Step 2: Convert to fraction form
   76,532.76/105,617.16 = 42,077.07/x
3. Step 3: Cross multiply
   76,532.76x = 105,617.16 × 42,077.07
4. Step 4: Simplify right side
   76,532.76x = 4,444,060,634.52
5. Step 5: Solve for x
   x = 4,444,060,634.52/76,532.76
6. Step 6: Final answer
   x = 58,067.43