Finding the Fourth Proportional to 53,445.96, 73,749.42 and 30,784.86

Step by Step Solution

1. Step 1: Write the proportion equation
   53,445.96 : 73,749.42 = 30,784.86 : x
2. Step 2: Convert to fraction form
   53,445.96/73,749.42 = 30,784.86/x
3. Step 3: Cross multiply
   53,445.96x = 73,749.42 × 30,784.86
4. Step 4: Simplify right side
   53,445.96x = 2,270,365,569.78
5. Step 5: Solve for x
   x = 2,270,365,569.78/53,445.96
6. Step 6: Final answer
   x = 42,479.65