Finding the Fourth Proportional to 72,402.80, 108,701.40 and 46,158.80

Step by Step Solution

1. Step 1: Write the proportion equation
   72,402.80 : 108,701.40 = 46,158.80 : x
2. Step 2: Convert to fraction form
   72,402.80/108,701.40 = 46,158.80/x
3. Step 3: Cross multiply
   72,402.80x = 108,701.40 × 46,158.80
4. Step 4: Simplify right side
   72,402.80x = 5,017,526,182.32
5. Step 5: Solve for x
   x = 5,017,526,182.32/72,402.80
6. Step 6: Final answer
   x = 69,300.17