Finding the Fourth Proportional to 562,473.98, 776,203.72 and 307,820.06

Step by Step Solution

1. Step 1: Write the proportion equation
   562,473.98 : 776,203.72 = 307,820.06 : x
2. Step 2: Convert to fraction form
   562,473.98/776,203.72 = 307,820.06/x
3. Step 3: Cross multiply
   562,473.98x = 776,203.72 × 307,820.06
4. Step 4: Simplify right side
   562,473.98x = 238,931,071,012.05
5. Step 5: Solve for x
   x = 238,931,071,012.05/562,473.98
6. Step 6: Final answer
   x = 424,786.00