Finding the Fourth Proportional to 117,900.03, 162,704.12 and 64,186.59

Step by Step Solution

1. Step 1: Write the proportion equation
   117,900.03 : 162,704.12 = 64,186.59 : x
2. Step 2: Convert to fraction form
   117,900.03/162,704.12 = 64,186.59/x
3. Step 3: Cross multiply
   117,900.03x = 162,704.12 × 64,186.59
4. Step 4: Simplify right side
   117,900.03x = 10,443,422,641.75
5. Step 5: Solve for x
   x = 10,443,422,641.75/117,900.03
6. Step 6: Final answer
   x = 88,578.63