Finding the Fourth Proportional to 152,472.34, 210,408.68 and 84,488.72

Step by Step Solution

1. Step 1: Write the proportion equation
   152,472.34 : 210,408.68 = 84,488.72 : x
2. Step 2: Convert to fraction form
   152,472.34/210,408.68 = 84,488.72/x
3. Step 3: Cross multiply
   152,472.34x = 210,408.68 × 84,488.72
4. Step 4: Simplify right side
   152,472.34x = 17,777,160,050.09
5. Step 5: Solve for x
   x = 17,777,160,050.09/152,472.34
6. Step 6: Final answer
   x = 116,592.69