Finding the Fourth Proportional to 83,288.61, 124,877.54 and 45,866.30

Step by Step Solution

1. Step 1: Write the proportion equation
   83,288.61 : 124,877.54 = 45,866.30 : x
2. Step 2: Convert to fraction form
   83,288.61/124,877.54 = 45,866.30/x
3. Step 3: Cross multiply
   83,288.61x = 124,877.54 × 45,866.30
4. Step 4: Simplify right side
   83,288.61x = 5,727,670,827.57
5. Step 5: Solve for x
   x = 5,727,670,827.57/83,288.61
6. Step 6: Final answer
   x = 68,768.96