Finding the Fourth Proportional to 76,457.46, 105,507.63 and 42,468.10

Step by Step Solution

1. Step 1: Write the proportion equation
   76,457.46 : 105,507.63 = 42,468.10 : x
2. Step 2: Convert to fraction form
   76,457.46/105,507.63 = 42,468.10/x
3. Step 3: Cross multiply
   76,457.46x = 105,507.63 × 42,468.10
4. Step 4: Simplify right side
   76,457.46x = 4,480,708,581.60
5. Step 5: Solve for x
   x = 4,480,708,581.60/76,457.46
6. Step 6: Final answer
   x = 58,603.94