Finding the Fourth Proportional to 76,788.16, 114,959.52 and 47,116.48

Step by Step Solution

1. Step 1: Write the proportion equation
   76,788.16 : 114,959.52 = 47,116.48 : x
2. Step 2: Convert to fraction form
   76,788.16/114,959.52 = 47,116.48/x
3. Step 3: Cross multiply
   76,788.16x = 114,959.52 × 47,116.48
4. Step 4: Simplify right side
   76,788.16x = 5,416,487,924.89
5. Step 5: Solve for x
   x = 5,416,487,924.89/76,788.16
6. Step 6: Final answer
   x = 70,538.06