Finding the Fourth Proportional to 72,444.38, 99,973.60 and 42,250.64

Step by Step Solution

1. Step 1: Write the proportion equation
   72,444.38 : 99,973.60 = 42,250.64 : x
2. Step 2: Convert to fraction form
   72,444.38/99,973.60 = 42,250.64/x
3. Step 3: Cross multiply
   72,444.38x = 99,973.60 × 42,250.64
4. Step 4: Simplify right side
   72,444.38x = 4,223,947,977.61
5. Step 5: Solve for x
   x = 4,223,947,977.61/72,444.38
6. Step 6: Final answer
   x = 58,306.09