Finding the Fourth Proportional to 152,623.42, 210,620.32 and 84,650.78

Step by Step Solution

1. Step 1: Write the proportion equation
   152,623.42 : 210,620.32 = 84,650.78 : x
2. Step 2: Convert to fraction form
   152,623.42/210,620.32 = 84,650.78/x
3. Step 3: Cross multiply
   152,623.42x = 210,620.32 × 84,650.78
4. Step 4: Simplify right side
   152,623.42x = 17,829,174,686.77
5. Step 5: Solve for x
   x = 17,829,174,686.77/152,623.42
6. Step 6: Final answer
   x = 116,818.08