Finding the Fourth Proportional to 83,926.72, 115,815.40 and 48,091.80

Step by Step Solution

1. Step 1: Write the proportion equation
   83,926.72 : 115,815.40 = 48,091.80 : x
2. Step 2: Convert to fraction form
   83,926.72/115,815.40 = 48,091.80/x
3. Step 3: Cross multiply
   83,926.72x = 115,815.40 × 48,091.80
4. Step 4: Simplify right side
   83,926.72x = 5,569,771,053.72
5. Step 5: Solve for x
   x = 5,569,771,053.72/83,926.72
6. Step 6: Final answer
   x = 66,364.69