Finding the Fourth Proportional to 152,061.96, 228,138.84 and 80,972.31

Step by Step Solution

1. Step 1: Write the proportion equation
   152,061.96 : 228,138.84 = 80,972.31 : x
2. Step 2: Convert to fraction form
   152,061.96/228,138.84 = 80,972.31/x
3. Step 3: Cross multiply
   152,061.96x = 228,138.84 × 80,972.31
4. Step 4: Simplify right side
   152,061.96x = 18,472,928,875.52
5. Step 5: Solve for x
   x = 18,472,928,875.52/152,061.96
6. Step 6: Final answer
   x = 121,482.91