Finding the Fourth Proportional to 79,973.16, 120,032.28 and 42,564.72

Step by Step Solution

1. Step 1: Write the proportion equation
   79,973.16 : 120,032.28 = 42,564.72 : x
2. Step 2: Convert to fraction form
   79,973.16/120,032.28 = 42,564.72/x
3. Step 3: Cross multiply
   79,973.16x = 120,032.28 × 42,564.72
4. Step 4: Simplify right side
   79,973.16x = 5,109,140,389.16
5. Step 5: Solve for x
   x = 5,109,140,389.16/79,973.16
6. Step 6: Final answer
   x = 63,885.69