Finding the Fourth Proportional to 82,428.68, 123,667.66 and 58,459.16

Step by Step Solution

1. Step 1: Write the proportion equation
   82,428.68 : 123,667.66 = 58,459.16 : x
2. Step 2: Convert to fraction form
   82,428.68/123,667.66 = 58,459.16/x
3. Step 3: Cross multiply
   82,428.68x = 123,667.66 × 58,459.16
4. Step 4: Simplify right side
   82,428.68x = 7,229,507,522.77
5. Step 5: Solve for x
   x = 7,229,507,522.77/82,428.68
6. Step 6: Final answer
   x = 87,706.21