Finding the Fourth Proportional to 76,452.73, 105,498.72 and 42,457.93

Step by Step Solution

1. Step 1: Write the proportion equation
   76,452.73 : 105,498.72 = 42,457.93 : x
2. Step 2: Convert to fraction form
   76,452.73/105,498.72 = 42,457.93/x
3. Step 3: Cross multiply
   76,452.73x = 105,498.72 × 42,457.93
4. Step 4: Simplify right side
   76,452.73x = 4,479,257,268.85
5. Step 5: Solve for x
   x = 4,479,257,268.85/76,452.73
6. Step 6: Final answer
   x = 58,588.58