Finding the Fourth Proportional to 77,401.82, 116,102.72 and 61,917.86

Step by Step Solution

1. Step 1: Write the proportion equation
   77,401.82 : 116,102.72 = 61,917.86 : x
2. Step 2: Convert to fraction form
   77,401.82/116,102.72 = 61,917.86/x
3. Step 3: Cross multiply
   77,401.82x = 116,102.72 × 61,917.86
4. Step 4: Simplify right side
   77,401.82x = 7,188,831,962.58
5. Step 5: Solve for x
   x = 7,188,831,962.58/77,401.82
6. Step 6: Final answer
   x = 92,876.78