Finding the Fourth Proportional to 357,510.84, 536,265.78 and 91,271.34

Step by Step Solution

1. Step 1: Write the proportion equation
   357,510.84 : 536,265.78 = 91,271.34 : x
2. Step 2: Convert to fraction form
   357,510.84/536,265.78 = 91,271.34/x
3. Step 3: Cross multiply
   357,510.84x = 536,265.78 × 91,271.34
4. Step 4: Simplify right side
   357,510.84x = 48,945,696,336.75
5. Step 5: Solve for x
   x = 48,945,696,336.75/357,510.84
6. Step 6: Final answer
   x = 136,906.89