Finding the Fourth Proportional to 45,050.10, 67,578.72 and 13,457.83

Step by Step Solution

1. Step 1: Write the proportion equation
   45,050.10 : 67,578.72 = 13,457.83 : x
2. Step 2: Convert to fraction form
   45,050.10/67,578.72 = 13,457.83/x
3. Step 3: Cross multiply
   45,050.10x = 67,578.72 × 13,457.83
4. Step 4: Simplify right side
   45,050.10x = 909,462,925.38
5. Step 5: Solve for x
   x = 909,462,925.38/45,050.10
6. Step 6: Final answer
   x = 20,187.81