Finding the Fourth Proportional to 222,012.02, 306,272.72 and 145,510.76

Step by Step Solution

1. Step 1: Write the proportion equation
   222,012.02 : 306,272.72 = 145,510.76 : x
2. Step 2: Convert to fraction form
   222,012.02/306,272.72 = 145,510.76/x
3. Step 3: Cross multiply
   222,012.02x = 306,272.72 × 145,510.76
4. Step 4: Simplify right side
   222,012.02x = 44,565,973,995.55
5. Step 5: Solve for x
   x = 44,565,973,995.55/222,012.02
6. Step 6: Final answer
   x = 200,736.77