Finding the Fourth Proportional to 57,064.91, 78,751.24 and 31,225.01

Step by Step Solution

1. Step 1: Write the proportion equation
   57,064.91 : 78,751.24 = 31,225.01 : x
2. Step 2: Convert to fraction form
   57,064.91/78,751.24 = 31,225.01/x
3. Step 3: Cross multiply
   57,064.91x = 78,751.24 × 31,225.01
4. Step 4: Simplify right side
   57,064.91x = 2,459,007,784.69
5. Step 5: Solve for x
   x = 2,459,007,784.69/57,064.91
6. Step 6: Final answer
   x = 43,091.42