Finding the Fourth Proportional to 45,150.62, 67,749.16 and 21,485.00

Step by Step Solution

1. Step 1: Write the proportion equation
   45,150.62 : 67,749.16 = 21,485.00 : x
2. Step 2: Convert to fraction form
   45,150.62/67,749.16 = 21,485.00/x
3. Step 3: Cross multiply
   45,150.62x = 67,749.16 × 21,485.00
4. Step 4: Simplify right side
   45,150.62x = 1,455,590,477.46
5. Step 5: Solve for x
   x = 1,455,590,477.46/45,150.62
6. Step 6: Final answer
   x = 32,238.55