Finding the Fourth Proportional to 151,113, 208,544.24 and 87,471.30

Step by Step Solution

1. Step 1: Write the proportion equation
   151,113 : 208,544.24 = 87,471.30 : x
2. Step 2: Convert to fraction form
   151,113/208,544.24 = 87,471.30/x
3. Step 3: Cross multiply
   151,113x = 208,544.24 × 87,471.30
4. Step 4: Simplify right side
   151,113x = 18,241,635,780.31
5. Step 5: Solve for x
   x = 18,241,635,780.31/151,113
6. Step 6: Final answer
   x = 120,715.20