Finding the Fourth Proportional to 117,820.74, 162,587.74 and 64,105.96

Step by Step Solution

1. Step 1: Write the proportion equation
   117,820.74 : 162,587.74 = 64,105.96 : x
2. Step 2: Convert to fraction form
   117,820.74/162,587.74 = 64,105.96/x
3. Step 3: Cross multiply
   117,820.74x = 162,587.74 × 64,105.96
4. Step 4: Simplify right side
   117,820.74x = 10,422,843,156.93
5. Step 5: Solve for x
   x = 10,422,843,156.93/117,820.74
6. Step 6: Final answer
   x = 88,463.57