Finding the Fourth Proportional to 98,716.86, 136,229.31 and 55,705.46

Step by Step Solution

1. Step 1: Write the proportion equation
   98,716.86 : 136,229.31 = 55,705.46 : x
2. Step 2: Convert to fraction form
   98,716.86/136,229.31 = 55,705.46/x
3. Step 3: Cross multiply
   98,716.86x = 136,229.31 × 55,705.46
4. Step 4: Simplify right side
   98,716.86x = 7,588,715,697.89
5. Step 5: Solve for x
   x = 7,588,715,697.89/98,716.86
6. Step 6: Final answer
   x = 76,873.55