Finding the Fourth Proportional to 52,199.19, 72,033.57 and 30,978

Step by Step Solution

1. Step 1: Write the proportion equation
   52,199.19 : 72,033.57 = 30,978 : x
2. Step 2: Convert to fraction form
   52,199.19/72,033.57 = 30,978/x
3. Step 3: Cross multiply
   52,199.19x = 72,033.57 × 30,978
4. Step 4: Simplify right side
   52,199.19x = 2,231,455,931.46
5. Step 5: Solve for x
   x = 2,231,455,931.46/52,199.19
6. Step 6: Final answer
   x = 42,748.86