Finding the Fourth Proportional to 91,643.02, 137,466.34 and 41,688.30

Step by Step Solution

1. Step 1: Write the proportion equation
   91,643.02 : 137,466.34 = 41,688.30 : x
2. Step 2: Convert to fraction form
   91,643.02/137,466.34 = 41,688.30/x
3. Step 3: Cross multiply
   91,643.02x = 137,466.34 × 41,688.30
4. Step 4: Simplify right side
   91,643.02x = 5,730,738,021.82
5. Step 5: Solve for x
   x = 5,730,738,021.82/91,643.02
6. Step 6: Final answer
   x = 62,533.27