Finding the Fourth Proportional to 152,877.31, 210,977.71 and 84,894.55

Step by Step Solution

1. Step 1: Write the proportion equation
   152,877.31 : 210,977.71 = 84,894.55 : x
2. Step 2: Convert to fraction form
   152,877.31/210,977.71 = 84,894.55/x
3. Step 3: Cross multiply
   152,877.31x = 210,977.71 × 84,894.55
4. Step 4: Simplify right side
   152,877.31x = 17,910,857,750.48
5. Step 5: Solve for x
   x = 17,910,857,750.48/152,877.31
6. Step 6: Final answer
   x = 117,158.38