Finding the Fourth Proportional to 78,310.91, 108,019.89 and 46,457.25

Step by Step Solution

1. Step 1: Write the proportion equation
   78,310.91 : 108,019.89 = 46,457.25 : x
2. Step 2: Convert to fraction form
   78,310.91/108,019.89 = 46,457.25/x
3. Step 3: Cross multiply
   78,310.91x = 108,019.89 × 46,457.25
4. Step 4: Simplify right side
   78,310.91x = 5,018,307,034.70
5. Step 5: Solve for x
   x = 5,018,307,034.70/78,310.91
6. Step 6: Final answer
   x = 64,081.84