Finding the Fourth Proportional to 152,430.72, 228,671.72 and 56,373.56

Step by Step Solution

1. Step 1: Write the proportion equation
   152,430.72 : 228,671.72 = 56,373.56 : x
2. Step 2: Convert to fraction form
   152,430.72/228,671.72 = 56,373.56/x
3. Step 3: Cross multiply
   152,430.72x = 228,671.72 × 56,373.56
4. Step 4: Simplify right side
   152,430.72x = 12,891,038,927.72
5. Step 5: Solve for x
   x = 12,891,038,927.72/152,430.72
6. Step 6: Final answer
   x = 84,569.82