Finding the Fourth Proportional to 98,864.32, 136,436.16 and 54,152.32

Step by Step Solution

1. Step 1: Write the proportion equation
   98,864.32 : 136,436.16 = 54,152.32 : x
2. Step 2: Convert to fraction form
   98,864.32/136,436.16 = 54,152.32/x
3. Step 3: Cross multiply
   98,864.32x = 136,436.16 × 54,152.32
4. Step 4: Simplify right side
   98,864.32x = 7,388,334,595.89
5. Step 5: Solve for x
   x = 7,388,334,595.89/98,864.32
6. Step 6: Final answer
   x = 74,732.06