Finding the Fourth Proportional to 102,762.96, 141,268.89 and 88,369.80

Step by Step Solution

1. Step 1: Write the proportion equation
   102,762.96 : 141,268.89 = 88,369.80 : x
2. Step 2: Convert to fraction form
   102,762.96/141,268.89 = 88,369.80/x
3. Step 3: Cross multiply
   102,762.96x = 141,268.89 × 88,369.80
4. Step 4: Simplify right side
   102,762.96x = 12,483,903,555.52
5. Step 5: Solve for x
   x = 12,483,903,555.52/102,762.96
6. Step 6: Final answer
   x = 121,482.52