Finding the Fourth Proportional to 469,111.68, 647,651.52 and 308,248.32

Step by Step Solution

1. Step 1: Write the proportion equation
   469,111.68 : 647,651.52 = 308,248.32 : x
2. Step 2: Convert to fraction form
   469,111.68/647,651.52 = 308,248.32/x
3. Step 3: Cross multiply
   469,111.68x = 647,651.52 × 308,248.32
4. Step 4: Simplify right side
   469,111.68x = 199,637,492,985.45
5. Step 5: Solve for x
   x = 199,637,492,985.45/469,111.68
6. Step 6: Final answer
   x = 425,564.96