Finding the Fourth Proportional to 118,317.42, 163,277.01 and 64,602.18

Step by Step Solution

1. Step 1: Write the proportion equation
   118,317.42 : 163,277.01 = 64,602.18 : x
2. Step 2: Convert to fraction form
   118,317.42/163,277.01 = 64,602.18/x
3. Step 3: Cross multiply
   118,317.42x = 163,277.01 × 64,602.18
4. Step 4: Simplify right side
   118,317.42x = 10,548,050,789.88
5. Step 5: Solve for x
   x = 10,548,050,789.88/118,317.42
6. Step 6: Final answer
   x = 89,150.45