Finding the Fourth Proportional to 53,085.18, 79,605.50 and 30,913.86

Step by Step Solution

1. Step 1: Write the proportion equation
   53,085.18 : 79,605.50 = 30,913.86 : x
2. Step 2: Convert to fraction form
   53,085.18/79,605.50 = 30,913.86/x
3. Step 3: Cross multiply
   53,085.18x = 79,605.50 × 30,913.86
4. Step 4: Simplify right side
   53,085.18x = 2,460,913,282.23
5. Step 5: Solve for x
   x = 2,460,913,282.23/53,085.18
6. Step 6: Final answer
   x = 46,357.82