Finding the Fourth Proportional to 152,429.72, 228,670.22 and 56,372.56

Step by Step Solution

1. Step 1: Write the proportion equation
   152,429.72 : 228,670.22 = 56,372.56 : x
2. Step 2: Convert to fraction form
   152,429.72/228,670.22 = 56,372.56/x
3. Step 3: Cross multiply
   152,429.72x = 228,670.22 × 56,372.56
4. Step 4: Simplify right side
   152,429.72x = 12,890,725,266.42
5. Step 5: Solve for x
   x = 12,890,725,266.42/152,429.72
6. Step 6: Final answer
   x = 84,568.32