Finding the Fourth Proportional to 152,645.10, 210,651.78 and 84,663.42

Step by Step Solution

1. Step 1: Write the proportion equation
   152,645.10 : 210,651.78 = 84,663.42 : x
2. Step 2: Convert to fraction form
   152,645.10/210,651.78 = 84,663.42/x
3. Step 3: Cross multiply
   152,645.10x = 210,651.78 × 84,663.42
4. Step 4: Simplify right side
   152,645.10x = 17,834,500,123.89
5. Step 5: Solve for x
   x = 17,834,500,123.89/152,645.10
6. Step 6: Final answer
   x = 116,836.37