Finding the Fourth Proportional to 77,100.82, 115,595.16 and 52,078.84

Step by Step Solution

1. Step 1: Write the proportion equation
   77,100.82 : 115,595.16 = 52,078.84 : x
2. Step 2: Convert to fraction form
   77,100.82/115,595.16 = 52,078.84/x
3. Step 3: Cross multiply
   77,100.82x = 115,595.16 × 52,078.84
4. Step 4: Simplify right side
   77,100.82x = 6,020,061,842.41
5. Step 5: Solve for x
   x = 6,020,061,842.41/77,100.82
6. Step 6: Final answer
   x = 78,080.39