Finding the Fourth Proportional to 42,893.01, 64,313.55 and 19,196.15

Step by Step Solution

1. Step 1: Write the proportion equation
   42,893.01 : 64,313.55 = 19,196.15 : x
2. Step 2: Convert to fraction form
   42,893.01/64,313.55 = 19,196.15/x
3. Step 3: Cross multiply
   42,893.01x = 64,313.55 × 19,196.15
4. Step 4: Simplify right side
   42,893.01x = 1,234,572,135.28
5. Step 5: Solve for x
   x = 1,234,572,135.28/42,893.01
6. Step 6: Final answer
   x = 28,782.60