Finding the Fourth Proportional to 42,707.08, 64,073.52 and 19,333.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,707.08 : 64,073.52 = 19,333.72 : x
2. Step 2: Convert to fraction form
   42,707.08/64,073.52 = 19,333.72/x
3. Step 3: Cross multiply
   42,707.08x = 64,073.52 × 19,333.72
4. Step 4: Simplify right side
   42,707.08x = 1,238,779,495.09
5. Step 5: Solve for x
   x = 1,238,779,495.09/42,707.08
6. Step 6: Final answer
   x = 29,006.42