Finding the Fourth Proportional to 53,039.07, 73,193.83 and 30,385.40

Step by Step Solution

1. Step 1: Write the proportion equation
   53,039.07 : 73,193.83 = 30,385.40 : x
2. Step 2: Convert to fraction form
   53,039.07/73,193.83 = 30,385.40/x
3. Step 3: Cross multiply
   53,039.07x = 73,193.83 × 30,385.40
4. Step 4: Simplify right side
   53,039.07x = 2,224,023,360.15
5. Step 5: Solve for x
   x = 2,224,023,360.15/53,039.07
6. Step 6: Final answer
   x = 41,931.79