Finding the Fourth Proportional to 76,487.02, 105,551.97 and 42,498.63

Step by Step Solution

1. Step 1: Write the proportion equation
   76,487.02 : 105,551.97 = 42,498.63 : x
2. Step 2: Convert to fraction form
   76,487.02/105,551.97 = 42,498.63/x
3. Step 3: Cross multiply
   76,487.02x = 105,551.97 × 42,498.63
4. Step 4: Simplify right side
   76,487.02x = 4,485,814,118.80
5. Step 5: Solve for x
   x = 4,485,814,118.80/76,487.02
6. Step 6: Final answer
   x = 58,648.05