Finding the Fourth Proportional to 89,160.90, 123,043.32 and 53,352.42

Step by Step Solution

1. Step 1: Write the proportion equation
   89,160.90 : 123,043.32 = 53,352.42 : x
2. Step 2: Convert to fraction form
   89,160.90/123,043.32 = 53,352.42/x
3. Step 3: Cross multiply
   89,160.90x = 123,043.32 × 53,352.42
4. Step 4: Simplify right side
   89,160.90x = 6,564,658,886.83
5. Step 5: Solve for x
   x = 6,564,658,886.83/89,160.90
6. Step 6: Final answer
   x = 73,627.10