Finding the Fourth Proportional to 151,003.68, 208,368.12 and 90,576.76

Step by Step Solution

1. Step 1: Write the proportion equation
   151,003.68 : 208,368.12 = 90,576.76 : x
2. Step 2: Convert to fraction form
   151,003.68/208,368.12 = 90,576.76/x
3. Step 3: Cross multiply
   151,003.68x = 208,368.12 × 90,576.76
4. Step 4: Simplify right side
   151,003.68x = 18,873,309,196.89
5. Step 5: Solve for x
   x = 18,873,309,196.89/151,003.68
6. Step 6: Final answer
   x = 124,985.76