Finding the Fourth Proportional to 681,807.50, 940,900.43 and 375,894.72

Step by Step Solution

1. Step 1: Write the proportion equation
   681,807.50 : 940,900.43 = 375,894.72 : x
2. Step 2: Convert to fraction form
   681,807.50/940,900.43 = 375,894.72/x
3. Step 3: Cross multiply
   681,807.50x = 940,900.43 × 375,894.72
4. Step 4: Simplify right side
   681,807.50x = 353,679,501,803.26
5. Step 5: Solve for x
   x = 353,679,501,803.26/681,807.50
6. Step 6: Final answer
   x = 518,738.07