Finding the Fourth Proportional to 103,450.50, 142,761.83 and 58,738.50

Step by Step Solution

1. Step 1: Write the proportion equation
   103,450.50 : 142,761.83 = 58,738.50 : x
2. Step 2: Convert to fraction form
   103,450.50/142,761.83 = 58,738.50/x
3. Step 3: Cross multiply
   103,450.50x = 142,761.83 × 58,738.50
4. Step 4: Simplify right side
   103,450.50x = 8,385,615,457.76
5. Step 5: Solve for x
   x = 8,385,615,457.76/103,450.50
6. Step 6: Final answer
   x = 81,059.21