Finding the Fourth Proportional to 91,968.66, 137,962.71 and 39,364.02

Step by Step Solution

1. Step 1: Write the proportion equation
   91,968.66 : 137,962.71 = 39,364.02 : x
2. Step 2: Convert to fraction form
   91,968.66/137,962.71 = 39,364.02/x
3. Step 3: Cross multiply
   91,968.66x = 137,962.71 × 39,364.02
4. Step 4: Simplify right side
   91,968.66x = 5,430,766,875.69
5. Step 5: Solve for x
   x = 5,430,766,875.69/91,968.66
6. Step 6: Final answer
   x = 59,050.19