Finding the Fourth Proportional to 106,436, 146,880.06 and 58,688.12

Step by Step Solution

1. Step 1: Write the proportion equation
   106,436 : 146,880.06 = 58,688.12 : x
2. Step 2: Convert to fraction form
   106,436/146,880.06 = 58,688.12/x
3. Step 3: Cross multiply
   106,436x = 146,880.06 × 58,688.12
4. Step 4: Simplify right side
   106,436x = 8,620,114,586.89
5. Step 5: Solve for x
   x = 8,620,114,586.89/106,436
6. Step 6: Final answer
   x = 80,988.71