Finding the Fourth Proportional to 51,256.02, 70,741.10 and 31,109.01

Step by Step Solution

1. Step 1: Write the proportion equation
   51,256.02 : 70,741.10 = 31,109.01 : x
2. Step 2: Convert to fraction form
   51,256.02/70,741.10 = 31,109.01/x
3. Step 3: Cross multiply
   51,256.02x = 70,741.10 × 31,109.01
4. Step 4: Simplify right side
   51,256.02x = 2,200,685,431.77
5. Step 5: Solve for x
   x = 2,200,685,431.77/51,256.02
6. Step 6: Final answer
   x = 42,935.16