Finding the Fourth Proportional to 103,459.50, 142,774.25 and 58,747.50

Step by Step Solution

1. Step 1: Write the proportion equation
   103,459.50 : 142,774.25 = 58,747.50 : x
2. Step 2: Convert to fraction form
   103,459.50/142,774.25 = 58,747.50/x
3. Step 3: Cross multiply
   103,459.50x = 142,774.25 × 58,747.50
4. Step 4: Simplify right side
   103,459.50x = 8,387,629,958.14
5. Step 5: Solve for x
   x = 8,387,629,958.14/103,459.50
6. Step 6: Final answer
   x = 81,071.63