Finding the Fourth Proportional to 106,686.72, 147,223.98 and 58,942.89

Step by Step Solution

1. Step 1: Write the proportion equation
   106,686.72 : 147,223.98 = 58,942.89 : x
2. Step 2: Convert to fraction form
   106,686.72/147,223.98 = 58,942.89/x
3. Step 3: Cross multiply
   106,686.72x = 147,223.98 × 58,942.89
4. Step 4: Simplify right side
   106,686.72x = 8,677,806,858.50
5. Step 5: Solve for x
   x = 8,677,806,858.50/106,686.72
6. Step 6: Final answer
   x = 81,339.15