Finding the Fourth Proportional to 149,669.32, 224,384.77 and 86,417.69

Step by Step Solution

1. Step 1: Write the proportion equation
   149,669.32 : 224,384.77 = 86,417.69 : x
2. Step 2: Convert to fraction form
   149,669.32/224,384.77 = 86,417.69/x
3. Step 3: Cross multiply
   149,669.32x = 224,384.77 × 86,417.69
4. Step 4: Simplify right side
   149,669.32x = 19,390,813,062.49
5. Step 5: Solve for x
   x = 19,390,813,062.49/149,669.32
6. Step 6: Final answer
   x = 129,557.71