Finding the Fourth Proportional to 103,588.83, 142,907.76 and 65,318.22

Step by Step Solution

1. Step 1: Write the proportion equation
   103,588.83 : 142,907.76 = 65,318.22 : x
2. Step 2: Convert to fraction form
   103,588.83/142,907.76 = 65,318.22/x
3. Step 3: Cross multiply
   103,588.83x = 142,907.76 × 65,318.22
4. Step 4: Simplify right side
   103,588.83x = 9,334,480,507.39
5. Step 5: Solve for x
   x = 9,334,480,507.39/103,588.83
6. Step 6: Final answer
   x = 90,110.88