Finding the Fourth Proportional to 118,051.13, 162,910.71 and 64,336.21

Step by Step Solution

1. Step 1: Write the proportion equation
   118,051.13 : 162,910.71 = 64,336.21 : x
2. Step 2: Convert to fraction form
   118,051.13/162,910.71 = 64,336.21/x
3. Step 3: Cross multiply
   118,051.13x = 162,910.71 × 64,336.21
4. Step 4: Simplify right side
   118,051.13x = 10,481,057,242.53
5. Step 5: Solve for x
   x = 10,481,057,242.53/118,051.13
6. Step 6: Final answer
   x = 88,784.05