Finding the Fourth Proportional to 118,393.01, 163,384.76 and 64,681.51

Step by Step Solution

1. Step 1: Write the proportion equation
   118,393.01 : 163,384.76 = 64,681.51 : x
2. Step 2: Convert to fraction form
   118,393.01/163,384.76 = 64,681.51/x
3. Step 3: Cross multiply
   118,393.01x = 163,384.76 × 64,681.51
4. Step 4: Simplify right side
   118,393.01x = 10,567,972,170.86
5. Step 5: Solve for x
   x = 10,567,972,170.86/118,393.01
6. Step 6: Final answer
   x = 89,261.79