Finding the Fourth Proportional to 113,088.72, 169,374.69 and 53,965.89

Step by Step Solution

1. Step 1: Write the proportion equation
   113,088.72 : 169,374.69 = 53,965.89 : x
2. Step 2: Convert to fraction form
   113,088.72/169,374.69 = 53,965.89/x
3. Step 3: Cross multiply
   113,088.72x = 169,374.69 × 53,965.89
4. Step 4: Simplify right side
   113,088.72x = 9,140,455,889.32
5. Step 5: Solve for x
   x = 9,140,455,889.32/113,088.72
6. Step 6: Final answer
   x = 80,825.53