Finding the Fourth Proportional to 99,216, 136,916.55 and 53,894.52

Step by Step Solution

1. Step 1: Write the proportion equation
   99,216 : 136,916.55 = 53,894.52 : x
2. Step 2: Convert to fraction form
   99,216/136,916.55 = 53,894.52/x
3. Step 3: Cross multiply
   99,216x = 136,916.55 × 53,894.52
4. Step 4: Simplify right side
   99,216x = 7,379,051,742.31
5. Step 5: Solve for x
   x = 7,379,051,742.31/99,216
6. Step 6: Final answer
   x = 74,373.61