Finding the Fourth Proportional to 124,978.77, 187,485.95 and 46,086.86

Step by Step Solution

1. Step 1: Write the proportion equation
   124,978.77 : 187,485.95 = 46,086.86 : x
2. Step 2: Convert to fraction form
   124,978.77/187,485.95 = 46,086.86/x
3. Step 3: Cross multiply
   124,978.77x = 187,485.95 × 46,086.86
4. Step 4: Simplify right side
   124,978.77x = 8,640,639,313.55
5. Step 5: Solve for x
   x = 8,640,639,313.55/124,978.77
6. Step 6: Final answer
   x = 69,136.86