Finding the Fourth Proportional to 152,397, 210,307.94 and 85,330.44

Step by Step Solution

1. Step 1: Write the proportion equation
   152,397 : 210,307.94 = 85,330.44 : x
2. Step 2: Convert to fraction form
   152,397/210,307.94 = 85,330.44/x
3. Step 3: Cross multiply
   152,397x = 210,307.94 × 85,330.44
4. Step 4: Simplify right side
   152,397x = 17,945,669,055.69
5. Step 5: Solve for x
   x = 17,945,669,055.69/152,397
6. Step 6: Final answer
   x = 117,756.05