Finding the Fourth Proportional to 99,144.32, 136,819.40 and 53,822.34

Step by Step Solution

1. Step 1: Write the proportion equation
   99,144.32 : 136,819.40 = 53,822.34 : x
2. Step 2: Convert to fraction form
   99,144.32/136,819.40 = 53,822.34/x
3. Step 3: Cross multiply
   99,144.32x = 136,819.40 × 53,822.34
4. Step 4: Simplify right side
   99,144.32x = 7,363,939,996.28
5. Step 5: Solve for x
   x = 7,363,939,996.28/99,144.32
6. Step 6: Final answer
   x = 74,274.96