Finding the Fourth Proportional to 81,510.32, 112,478.61 and 45,208.34

Step by Step Solution

1. Step 1: Write the proportion equation
   81,510.32 : 112,478.61 = 45,208.34 : x
2. Step 2: Convert to fraction form
   81,510.32/112,478.61 = 45,208.34/x
3. Step 3: Cross multiply
   81,510.32x = 112,478.61 × 45,208.34
4. Step 4: Simplify right side
   81,510.32x = 5,084,971,243.61
5. Step 5: Solve for x
   x = 5,084,971,243.61/81,510.32
6. Step 6: Final answer
   x = 62,384.39