Finding the Fourth Proportional to 78,984.51, 108,990.52 and 47,149.08

Step by Step Solution

1. Step 1: Write the proportion equation
   78,984.51 : 108,990.52 = 47,149.08 : x
2. Step 2: Convert to fraction form
   78,984.51/108,990.52 = 47,149.08/x
3. Step 3: Cross multiply
   78,984.51x = 108,990.52 × 47,149.08
4. Step 4: Simplify right side
   78,984.51x = 5,138,802,746.72
5. Step 5: Solve for x
   x = 5,138,802,746.72/78,984.51
6. Step 6: Final answer
   x = 65,060.89