Finding the Fourth Proportional to 151,810.07, 209,516.37 and 88,147.86

Step by Step Solution

1. Step 1: Write the proportion equation
   151,810.07 : 209,516.37 = 88,147.86 : x
2. Step 2: Convert to fraction form
   151,810.07/209,516.37 = 88,147.86/x
3. Step 3: Cross multiply
   151,810.07x = 209,516.37 × 88,147.86
4. Step 4: Simplify right side
   151,810.07x = 18,468,420,105.60
5. Step 5: Solve for x
   x = 18,468,420,105.60/151,810.07
6. Step 6: Final answer
   x = 121,654.78