Finding the Fourth Proportional to 57,602, 79,490.76 and 31,106

Step by Step Solution

1. Step 1: Write the proportion equation
   57,602 : 79,490.76 = 31,106 : x
2. Step 2: Convert to fraction form
   57,602/79,490.76 = 31,106/x
3. Step 3: Cross multiply
   57,602x = 79,490.76 × 31,106
4. Step 4: Simplify right side
   57,602x = 2,472,639,580.56
5. Step 5: Solve for x
   x = 2,472,639,580.56/57,602
6. Step 6: Final answer
   x = 42,926.28