Finding the Fourth Proportional to 53,620.02, 73,987.29 and 30,649.50

Step by Step Solution

1. Step 1: Write the proportion equation
   53,620.02 : 73,987.29 = 30,649.50 : x
2. Step 2: Convert to fraction form
   53,620.02/73,987.29 = 30,649.50/x
3. Step 3: Cross multiply
   53,620.02x = 73,987.29 × 30,649.50
4. Step 4: Simplify right side
   53,620.02x = 2,267,673,444.86
5. Step 5: Solve for x
   x = 2,267,673,444.86/53,620.02
6. Step 6: Final answer
   x = 42,291.54