Finding the Fourth Proportional to 93,431.00, 140,142.01 and 42,800.80

Step by Step Solution

1. Step 1: Write the proportion equation
   93,431.00 : 140,142.01 = 42,800.80 : x
2. Step 2: Convert to fraction form
   93,431.00/140,142.01 = 42,800.80/x
3. Step 3: Cross multiply
   93,431.00x = 140,142.01 × 42,800.80
4. Step 4: Simplify right side
   93,431.00x = 5,998,189,684.25
5. Step 5: Solve for x
   x = 5,998,189,684.25/93,431.00
6. Step 6: Final answer
   x = 64,199.14