Finding the Fourth Proportional to 78,990.93, 108,992.59 and 46,730.86

Step by Step Solution

1. Step 1: Write the proportion equation
   78,990.93 : 108,992.59 = 46,730.86 : x
2. Step 2: Convert to fraction form
   78,990.93/108,992.59 = 46,730.86/x
3. Step 3: Cross multiply
   78,990.93x = 108,992.59 × 46,730.86
4. Step 4: Simplify right side
   78,990.93x = 5,093,317,075.02
5. Step 5: Solve for x
   x = 5,093,317,075.02/78,990.93
6. Step 6: Final answer
   x = 64,479.77