Finding the Fourth Proportional to 102,588.89, 141,575.04 and 64,350.05

Step by Step Solution

1. Step 1: Write the proportion equation
   102,588.89 : 141,575.04 = 64,350.05 : x
2. Step 2: Convert to fraction form
   102,588.89/141,575.04 = 64,350.05/x
3. Step 3: Cross multiply
   102,588.89x = 141,575.04 × 64,350.05
4. Step 4: Simplify right side
   102,588.89x = 9,110,360,194.88
5. Step 5: Solve for x
   x = 9,110,360,194.88/102,588.89
6. Step 6: Final answer
   x = 88,804.55