Finding the Fourth Proportional to 78,878.32, 108,852.12 and 45,342.32

Step by Step Solution

1. Step 1: Write the proportion equation
   78,878.32 : 108,852.12 = 45,342.32 : x
2. Step 2: Convert to fraction form
   78,878.32/108,852.12 = 45,342.32/x
3. Step 3: Cross multiply
   78,878.32x = 108,852.12 × 45,342.32
4. Step 4: Simplify right side
   78,878.32x = 4,935,607,657.72
5. Step 5: Solve for x
   x = 4,935,607,657.72/78,878.32
6. Step 6: Final answer
   x = 62,572.42