Finding the Fourth Proportional to 49,902.96, 68,861.40 and 31,025.52

Step by Step Solution

1. Step 1: Write the proportion equation
   49,902.96 : 68,861.40 = 31,025.52 : x
2. Step 2: Convert to fraction form
   49,902.96/68,861.40 = 31,025.52/x
3. Step 3: Cross multiply
   49,902.96x = 68,861.40 × 31,025.52
4. Step 4: Simplify right side
   49,902.96x = 2,136,460,742.93
5. Step 5: Solve for x
   x = 2,136,460,742.93/49,902.96
6. Step 6: Final answer
   x = 42,812.30