Finding the Fourth Proportional to 231,501.55, 347,243.98 and 60,721.89

Step by Step Solution

1. Step 1: Write the proportion equation
   231,501.55 : 347,243.98 = 60,721.89 : x
2. Step 2: Convert to fraction form
   231,501.55/347,243.98 = 60,721.89/x
3. Step 3: Cross multiply
   231,501.55x = 347,243.98 × 60,721.89
4. Step 4: Simplify right side
   231,501.55x = 21,085,312,214.14
5. Step 5: Solve for x
   x = 21,085,312,214.14/231,501.55
6. Step 6: Final answer
   x = 91,080.65