Finding the Fourth Proportional to 99,233.10, 136,941.12 and 53,910.72

Step by Step Solution

1. Step 1: Write the proportion equation
   99,233.10 : 136,941.12 = 53,910.72 : x
2. Step 2: Convert to fraction form
   99,233.10/136,941.12 = 53,910.72/x
3. Step 3: Cross multiply
   99,233.10x = 136,941.12 × 53,910.72
4. Step 4: Simplify right side
   99,233.10x = 7,382,594,376.81
5. Step 5: Solve for x
   x = 7,382,594,376.81/99,233.10
6. Step 6: Final answer
   x = 74,396.49