Finding the Fourth Proportional to 76,488.30, 105,551.10 and 42,498.27

Step by Step Solution

1. Step 1: Write the proportion equation
   76,488.30 : 105,551.10 = 42,498.27 : x
2. Step 2: Convert to fraction form
   76,488.30/105,551.10 = 42,498.27/x
3. Step 3: Cross multiply
   76,488.30x = 105,551.10 × 42,498.27
4. Step 4: Simplify right side
   76,488.30x = 4,485,739,146.60
5. Step 5: Solve for x
   x = 4,485,739,146.60/76,488.30
6. Step 6: Final answer
   x = 58,646.08