Finding the Fourth Proportional to 118,429.05, 163,430.12 and 64,712.84

Step by Step Solution

1. Step 1: Write the proportion equation
   118,429.05 : 163,430.12 = 64,712.84 : x
2. Step 2: Convert to fraction form
   118,429.05/163,430.12 = 64,712.84/x
3. Step 3: Cross multiply
   118,429.05x = 163,430.12 × 64,712.84
4. Step 4: Simplify right side
   118,429.05x = 10,576,026,066.03
5. Step 5: Solve for x
   x = 10,576,026,066.03/118,429.05
6. Step 6: Final answer
   x = 89,302.63