Finding the Fourth Proportional to 53,280.46, 73,502.67 and 30,911.50

Step by Step Solution

1. Step 1: Write the proportion equation
   53,280.46 : 73,502.67 = 30,911.50 : x
2. Step 2: Convert to fraction form
   53,280.46/73,502.67 = 30,911.50/x
3. Step 3: Cross multiply
   53,280.46x = 73,502.67 × 30,911.50
4. Step 4: Simplify right side
   53,280.46x = 2,272,077,783.71
5. Step 5: Solve for x
   x = 2,272,077,783.71/53,280.46
6. Step 6: Final answer
   x = 42,643.73