Finding the Fourth Proportional to 53,319.83, 73,585.71 and 30,666.15

Step by Step Solution

1. Step 1: Write the proportion equation
   53,319.83 : 73,585.71 = 30,666.15 : x
2. Step 2: Convert to fraction form
   53,319.83/73,585.71 = 30,666.15/x
3. Step 3: Cross multiply
   53,319.83x = 73,585.71 × 30,666.15
4. Step 4: Simplify right side
   53,319.83x = 2,256,590,420.72
5. Step 5: Solve for x
   x = 2,256,590,420.72/53,319.83
6. Step 6: Final answer
   x = 42,321.79