Finding the Fourth Proportional to 152,783.46, 210,836.88 and 83,872.91

Step by Step Solution

1. Step 1: Write the proportion equation
   152,783.46 : 210,836.88 = 83,872.91 : x
2. Step 2: Convert to fraction form
   152,783.46/210,836.88 = 83,872.91/x
3. Step 3: Cross multiply
   152,783.46x = 210,836.88 × 83,872.91
4. Step 4: Simplify right side
   152,783.46x = 17,683,501,606.74
5. Step 5: Solve for x
   x = 17,683,501,606.74/152,783.46
6. Step 6: Final answer
   x = 115,742.25