Finding the Fourth Proportional to 152,761.50, 210,812.31 and 85,694.94

Step by Step Solution

1. Step 1: Write the proportion equation
   152,761.50 : 210,812.31 = 85,694.94 : x
2. Step 2: Convert to fraction form
   152,761.50/210,812.31 = 85,694.94/x
3. Step 3: Cross multiply
   152,761.50x = 210,812.31 × 85,694.94
4. Step 4: Simplify right side
   152,761.50x = 18,065,548,256.71
5. Step 5: Solve for x
   x = 18,065,548,256.71/152,761.50
6. Step 6: Final answer
   x = 118,259.82