Finding the Fourth Proportional to 3,181,638.72, 4,772,467.89 and 785,483.63

Step by Step Solution

1. Step 1: Write the proportion equation
   3,181,638.72 : 4,772,467.89 = 785,483.63 : x
2. Step 2: Convert to fraction form
   3,181,638.72/4,772,467.89 = 785,483.63/x
3. Step 3: Cross multiply
   3,181,638.72x = 4,772,467.89 × 785,483.63
4. Step 4: Simplify right side
   3,181,638.72x = 3,748,695,378,433.30
5. Step 5: Solve for x
   x = 3,748,695,378,433.30/3,181,638.72
6. Step 6: Final answer
   x = 1,178,227.86