Finding the Fourth Proportional to 84,978.45, 127,451.88 and 39,375.32

Step by Step Solution

1. Step 1: Write the proportion equation
   84,978.45 : 127,451.88 = 39,375.32 : x
2. Step 2: Convert to fraction form
   84,978.45/127,451.88 = 39,375.32/x
3. Step 3: Cross multiply
   84,978.45x = 127,451.88 × 39,375.32
4. Step 4: Simplify right side
   84,978.45x = 5,018,457,922.34
5. Step 5: Solve for x
   x = 5,018,457,922.34/84,978.45
6. Step 6: Final answer
   x = 59,055.65