Finding the Fourth Proportional to 43,111.56, 64,612.50 and 19,393.74

Step by Step Solution

1. Step 1: Write the proportion equation
   43,111.56 : 64,612.50 = 19,393.74 : x
2. Step 2: Convert to fraction form
   43,111.56/64,612.50 = 19,393.74/x
3. Step 3: Cross multiply
   43,111.56x = 64,612.50 × 19,393.74
4. Step 4: Simplify right side
   43,111.56x = 1,253,078,025.75
5. Step 5: Solve for x
   x = 1,253,078,025.75/43,111.56
6. Step 6: Final answer
   x = 29,065.94