Finding the Fourth Proportional to 71,100.84, 106,558.92 and 28,931.76

Step by Step Solution

1. Step 1: Write the proportion equation
   71,100.84 : 106,558.92 = 28,931.76 : x
2. Step 2: Convert to fraction form
   71,100.84/106,558.92 = 28,931.76/x
3. Step 3: Cross multiply
   71,100.84x = 106,558.92 × 28,931.76
4. Step 4: Simplify right side
   71,100.84x = 3,082,937,099.30
5. Step 5: Solve for x
   x = 3,082,937,099.30/71,100.84
6. Step 6: Final answer
   x = 43,360.07