Finding the Fourth Proportional to 144,225.12, 216,279.24 and 59,928

Step by Step Solution

1. Step 1: Write the proportion equation
   144,225.12 : 216,279.24 = 59,928 : x
2. Step 2: Convert to fraction form
   144,225.12/216,279.24 = 59,928/x
3. Step 3: Cross multiply
   144,225.12x = 216,279.24 × 59,928
4. Step 4: Simplify right side
   144,225.12x = 12,961,182,294.72
5. Step 5: Solve for x
   x = 12,961,182,294.72/144,225.12
6. Step 6: Final answer
   x = 89,867.72