Finding the Fourth Proportional to 45,030.18, 67,499.91 and 21,643.86

Step by Step Solution

1. Step 1: Write the proportion equation
   45,030.18 : 67,499.91 = 21,643.86 : x
2. Step 2: Convert to fraction form
   45,030.18/67,499.91 = 21,643.86/x
3. Step 3: Cross multiply
   45,030.18x = 67,499.91 × 21,643.86
4. Step 4: Simplify right side
   45,030.18x = 1,460,958,602.05
5. Step 5: Solve for x
   x = 1,460,958,602.05/45,030.18
6. Step 6: Final answer
   x = 32,443.99